Clamping and positioning tool for thin-wall injection molding part

Abstract

The utility model relates to the technical field of positioning tools, and discloses a clamping and positioning tool for a thin-wall injection-molded part, according to the clamping and positioning tool for the thin-wall injection-molded part, when a positioning plate is attached to the surface of the injection-molded part, a rocker continues to be rotated, so that a first hinge rod pushes an inclined rod, and the hinged positions of the two ends of the inclined rod rotate; the inclined rod pushes the push rod to move downwards along the limiting buckle, the push rod can push the hinge block at the bottom to move downwards, the hinge block can open the second hinge rod so as to push the L-shaped rod to slide in the guide rod, a second spring can be stretched, the L-shaped rod can be clamped into the clamping teeth when stretching out of the guide rod, and therefore the guide rod cannot continue to slide. And meanwhile, a worker can bear large resistance when rotating the rocker, then the worker knows that the thin-wall injection-molded part is firmly positioned and stops rotating the rocker, and the situation that the thin-wall injection-molded part is deformed and damaged due to the fact that the clamping force is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a clamping positioning tooling for thin-wall injection moldings. Background Art

[0002] The clamping and positioning tooling for thin-walled injection molded parts is usually used to effectively fix and position them when processing or handling thin-walled injection molded parts to ensure processing accuracy and quality. By using this clamping and positioning tooling, the processing accuracy and consistency of thin-walled injection molded parts can be improved, the scrap rate can be reduced, and production efficiency can be improved. The specific tooling structure and design will be customized according to the specific requirements and processing technology of thin-walled injection molded parts.

[0003] According to a disclosed clamping and positioning tool for thin-walled injection moldings (publication number: CN210650294U), in the above application, when the thin-walled injection moldings are clamped and positioned mechanically, the accurate clamping force cannot be ensured due to the clamping by the instrument. If the force is too large, it will easily cause the thin-walled injection moldings to deform and be damaged. If the clamping force is too small, it will cause the clamping to be not firm enough. Utility Model Content

[0004] The utility model aims to provide a clamping and positioning tool for thin-walled injection molded parts to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a clamping and positioning tool for thin-walled injection molded parts, comprising a body, a through groove is provided on the top surface of the body, a positioning part is provided inside the body, and the positioning part comprises:

[0006] A threaded rod, the threaded rod passes through the machine body and is rotatably connected to the machine body, the threads on the threaded rod are symmetrically arranged with the center line of the machine body as the symmetry axis, one end of the threaded rod located outside the machine body passes through and is fixedly connected to a rocker, and the rocker is rotated to drive the threaded rod to rotate, and one end of the threaded rod located inside the machine body passes through and is threadedly connected to a screw sleeve;

[0007] A connecting column, the bottom surface of which is fixedly connected to the top surface of the screw sleeve, the connecting column passes through the through slot and is slidably connected, because the screw sleeve is penetrated by the threaded rod and threadedly connected, the through slot limits the connecting column, the top surface of the connecting column is fixedly connected with a connecting plate, the surface of the connecting plate passes through and is slidably connected with a sliding ring, and the left side of the sliding ring is fixedly connected with a positioning plate.

[0008] Preferably, a spring is fixedly connected to the surface of the connecting plate away from the positioning plate. When the positioning plate is in contact with the surface of the injection molded part, the rocker continues to rotate to shorten the distance between the positioning plate and the connecting plate. One end of the spring away from the connecting plate is fixedly connected to the inner side of the sliding ring.

[0009] Preferably, a hinged rod 1 passes through and is hinged on the inner side of the sliding ring, and a diagonal rod is passed through and hinged on one end of the hinged rod 1 away from the inner side of the sliding ring. The distance between the positioning plate and the connecting plate is shortened, so that the hinged rod 1 pushes the diagonal rod, causing the hinged positions at both ends of the diagonal rod to rotate, and a push rod is passed through and hinged on one end of the diagonal rod away from the hinged rod 1.

[0010] Preferably, a side surface of the connecting plate close to the positioning plate is fixedly connected to a limiting buckle, and the push rod passes through the limiting buckle and is slidably connected.

[0011] Preferably, the bottom surface of the push rod is fixedly connected with a hinge block, and the hinged positions at both ends of the inclined rod rotate, so that the inclined rod pushes the push rod to move downward along the limit buckle, and the push rod pushes the hinge block at the bottom to move downward, and the two sides of the hinge block are penetrated and hinged with hinge rod 2.

[0012] Preferably, a guide rod is fixedly connected to the side of the connecting column, and a sliding groove is opened on the inner wall of the body. When the rocker drives the threaded rod to rotate, the screw sleeve slides along the threaded rod, and the screw sleeve drives the connecting plate to move together through the connecting column. A latch tooth is fixedly connected to the inner side of the sliding groove, and the guide rod passes through the sliding groove and is slidably connected.

[0013] Preferably, an L-shaped rod penetrates and is slidably connected to the inner side of the guide rod, the top end of the L-shaped rod is penetrated by and hinged to the second hinge rod, and a second spring is fixedly connected between the L-shaped rod and the inner wall of the guide rod.

[0014] Compared with the prior art, the utility model provides a clamping and positioning tool for thin-walled injection molded parts, which has the following beneficial effects:

[0015] 1. The thin-walled injection molded part uses a clamping and positioning tool. When the positioning plate is in contact with the surface of the injection molded part, the rocker continues to be rotated, so that the hinged rod 1 pushes the oblique rod, causing the hinged positions at both ends of the oblique rod to rotate, thereby causing the oblique rod to push the push rod to move downward along the limit buckle, and the push rod will push the bottom hinge block to move downward, and the hinge block will open the hinged rod 2 to push the L-shaped rod to slide in the guide rod, and will stretch the spring 2. When the L-shaped rod extends out of the guide rod, it will be stuck in the tooth, so that the guide rod cannot continue to slide, and the screw sleeve cannot continue to move. At the same time, the staff will encounter greater resistance when turning the rocker, and then know that the thin-walled injection molded part has been firmly positioned and stop turning the rocker to avoid deformation and damage of the thin-walled injection molded part due to excessive clamping force.

[0016] 2. The thin-walled injection molded part is clamped and positioned by a fixture. The threads are symmetrically arranged on the threaded rod, so that the symmetrical screw sleeves drive the symmetrical positioning plates to position the injection molded part at a uniform speed, so that the clamping force on both sides of the thin-walled injection molded part is more uniform to avoid deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the enlarged structure of the internal body of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning plate of the utility model;

[0020] Figure 4 This is an enlarged structural diagram of the positioning part of the utility model;

[0021] Figure 5 It is a schematic diagram of the enlarged structure of the slide groove inside the body of the utility model.

[0022] In the figure: 1. body; 2. positioning part; 21. threaded rod; 22. rocker; 23. screw sleeve; 24. connecting column; 25. connecting plate; 26. sliding ring; 27. positioning plate; 28. spring 1; 29. ​​hinge rod 1; 210. inclined rod; 211. push rod; 212. limit buckle; 213. hinge block; 214. guide rod; 215. L-shaped rod; 216. spring 2; 217. hinge rod 2; 218. slide groove; 219. latch tooth; 3. through groove. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a clamping and positioning tool for thin-walled injection molding parts, including a body 1, a through groove 3 is opened on the top surface of the body 1, and a positioning part 2 is arranged inside the body 1, and the positioning part 2 includes: a threaded rod 21, a rocker 22, a screw sleeve 23, a connecting column 24, a connecting plate 25, a sliding ring 26, a positioning plate 27, a spring 28, a hinge rod 29, a diagonal rod 210, a push rod 211, a limit buckle 212, a hinge block 213, a guide rod 214, an L-shaped rod 215, a spring 216, a hinge rod 217, a slide groove 218, and a latch tooth 219.

[0024] The threaded rod 21 penetrates the machine body 1, and the threaded rod 21 is rotatably connected to the machine body 1. The threads on the threaded rod 21 are symmetrically arranged with the center line of the machine body 1 as the symmetry axis. The end of the threaded rod 21 located on the outside of the machine body 1 penetrates and is fixedly connected with a rocker 22. When positioning the thin-walled injection molded part, the thin-walled injection molded part to be positioned is placed on the surface of the machine body 1, and then the rocker 22 is rotated, and the rocker 22 drives the threaded rod 21 to rotate. The end of the threaded rod 21 located on the inside of the machine body 1 penetrates and is threaded. A screw sleeve 23 is connected, the bottom surface of the connecting column 24 is fixedly connected to the top surface of the screw sleeve 23, the connecting column 24 penetrates the through groove 3 and is slidably connected, because the screw sleeve 23 is penetrated and threaded by the threaded rod 21, and the connecting column 24 fixed on the top surface of the screw sleeve 23 penetrates the through groove 3, so that the through groove 3 limits the connecting column 24, and the top surface of the connecting column 24 is fixedly connected with a connecting plate 25, and the surface of the connecting plate 25 penetrates and is slidably connected with a sliding ring 26, and the left side of the sliding ring 26 is fixedly connected with a positioning plate 27. The surface of the connecting plate 25 away from the positioning plate 27 is fixedly connected with a spring 1 28, when the positioning plate 27 is attached to the surface of the injection molded part, the rocker 22 is still rotated, which will make the connecting plate 25 continue to move, but the positioning plate 27 has already hit the surface of the injection molded part, so that the distance between the positioning plate 27 and the connecting plate 25 is shortened, and the end of the spring 1 28 away from the connecting plate 25 is fixedly connected to the inner side of the sliding ring 26. The inner side of the sliding ring 26 is penetrated and hinged with a hinge rod 29, and the end of the hinge rod 29 away from the inner side of the sliding ring 26 is penetrated and hinged with an inclined rod 210, and the distance between the positioning plate 27 and the connecting plate 25 is shortened, so that the hinge rod 29 inside the sliding ring 26 gradually approaches the connecting plate 25, and the hinge rod 29 pushes the inclined rod 210, so that the hinged positions of the two ends of the inclined rod 210 rotate, and the end of the inclined rod 210 away from the hinge rod 29 is penetrated and hinged with a push rod 211. The surface of one side of the connecting plate 25 close to the positioning plate 27 is fixedly connected with a limit buckle 212, and the push rod 211 penetrates the limit buckle 212 and is slidably connected. The bottom surface of the push rod 211 is fixedly connected with a hinge block 213, and the hinged positions at both ends of the inclined rod 210 rotate, so that the inclined rod 210 pushes the push rod 211 to move downward along the limit buckle 212, and the push rod 211 will push the bottom hinge block 213 to move downward, and the hinge block 213 will open the hinge rod 217 to push the L-shaped rod 215 to slide in the guide rod 214, and will stretch the spring 216. When the L-shaped rod 215 extends out of the guide rod 214, it will be stuck in the latch tooth 219, and the hinge rod 217 is passed through and hinged on both sides of the hinge block 213.The side of the connecting column 24 is fixedly connected with a guide rod 214, and the inner wall of the body 1 is provided with a slide groove 218. When the rocker 22 drives the threaded rod 21 to rotate, the screw sleeve 23 slides along the threaded rod 21, and the screw sleeve 23 drives the connecting plate 25 to move together through the connecting column 24. The connecting plate 25 will drive the positioning plate 27 to move together due to the friction of the sliding ring 26, and the guide rod 214 will slide along the slide groove 218. The inner side of the slide groove 218 is fixedly connected with a latch tooth 219, and the guide rod 214 penetrates the slide groove 218 and is slidably connected. The inner side of the guide rod 214 penetrates and is slidably connected with an L-shaped rod 215, and the top of the L-shaped rod 215 is penetrated and hinged by the hinge rod 217, and the L-shaped rod 215 and the inner wall of the guide rod 214 are fixedly connected with a spring 216.

[0025] Based on the above embodiment, when positioning the thin-walled injection molded part, the thin-walled injection molded part to be positioned is placed on the surface of the machine body 1, and then the rocker 22 is rotated, the rocker 22 will drive the threaded rod 21 to rotate, because the screw sleeve 23 is penetrated by the threaded rod 21 and threadedly connected, and at the same time, the connecting column 24 fixed on the top surface of the screw sleeve 23 penetrates the through groove 3, so that the through groove 3 limits the connecting column 24, and then when the rocker 22 drives the threaded rod 21 to rotate, the screw sleeve 23 slides along the threaded rod 21, and the screw sleeve 23 drives the connecting plate 25 to move together through the connecting column 24, and the connecting plate 25 will drive the positioning plate 27 to move together due to the friction force of the sliding ring 26, and the guide rod 214 will slide along the sliding groove 218, and when the positioning plate 27 is in contact with the surface of the injection molded part, the rocker 22 is still rotated, which will cause the connecting plate 25 to continue to move, but the positioning plate 27 has already contacted the surface of the injection molded part, so that the positioning plate 27 and The distance between the connecting plates 25 is shortened, so that the hinge rod 29 on the inner side of the sliding ring 26 gradually approaches the connecting plate 25, and the hinge rod 29 pushes the inclined rod 210, so that the hinged positions at both ends of the inclined rod 210 rotate, so that the inclined rod 210 pushes the push rod 211 to move downward along the limit buckle 212, and the push rod 211 will push the hinge block 213 at the bottom to move downward, and the hinge block 213 will open the hinge rod 217 to push the L-shaped rod 215 to slide in the guide rod 214, and will stretch the spring 216. When the L-shaped rod 215 extends out of the guide rod 214, it will be stuck in the latch tooth 219, so that the guide rod 214 cannot continue to slide, and relatively, the screw sleeve 23 cannot continue to move. At the same time, the staff will also encounter greater resistance when turning the rocker 22, and then know that the thin-walled injection molded part has been firmly positioned and stop turning the rocker 22, to avoid excessive clamping force causing deformation and damage of the thin-walled injection molded part.

[0026] The symmetrically arranged threads of the threaded rod 21 allow the symmetrical screw sleeves 23 to drive the symmetrical positioning plates 27 to position the injection molded part at a uniform speed, so that the clamping force on both sides of the thin-walled injection molded part is more uniform to avoid deformation.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A clamping and positioning tool for thin-walled injection molded parts, comprising a body (1), characterized in that: The top surface of the machine body (1) is provided with a through groove (3), and the interior of the machine body (1) is provided with a positioning portion (2), and the positioning portion (2) comprises: a threaded rod (21), the threaded rod (21) passing through the machine body (1), and the threaded rod (21) being rotatably connected to the machine body (1), the threads on the threaded rod (21) being symmetrically arranged with the center line of the machine body (1) as a symmetry axis, the end of the threaded rod (21) located outside the machine body (1) passing through and fixedly connected to a rocker (22), and the end of the threaded rod (21) located inside the machine body (1) passing through and threadedly connected to a screw sleeve (23); A connecting column (24), the bottom surface of which is fixedly connected to the top surface of the screw sleeve (23), the connecting column (24) passes through the through groove (3) and is slidably connected, the top surface of the connecting column (24) is fixedly connected to a connecting plate (25), the surface of the connecting plate (25) passes through and is slidably connected to a sliding ring (26), and the left side of the sliding ring (26) is fixedly connected to a positioning plate (27).

2. The clamping and positioning tool for thin-walled injection molded parts according to claim 1, characterized in that: A spring 1 (28) is fixedly connected to the surface of the connecting plate (25) at a side away from the positioning plate (27), and one end of the spring 1 (28) away from the connecting plate (25) is fixedly connected to the inner side of the sliding ring (26).

3. The clamping and positioning tool for thin-walled injection molded parts according to claim 1, characterized in that: A hinge rod (29) passes through and is hingedly connected to the inner side of the sliding ring (26); an inclined rod (210) passes through and is hingedly connected to the end of the hinge rod (29) away from the inner side of the sliding ring (26); and a push rod (211) passes through and is hingedly connected to the end of the inclined rod (210) away from the hinge rod (29).

4. The clamping and positioning tool for thin-walled injection molded parts according to claim 3, characterized in that: A side surface of the connection plate (25) close to the positioning plate (27) is fixedly connected to a limiting buckle (212), and the push rod (211) passes through the limiting buckle (212) and is slidably connected.

5. The clamping and positioning tool for thin-walled injection molded parts according to claim 3, characterized in that: The bottom surface of the push rod (211) is fixedly connected to a hinge block (213), and hinge rods 2 (217) are passed through and hingedly connected to both sides of the hinge block (213).

6. The clamping and positioning tool for thin-walled injection molded parts according to claim 1, characterized in that: A guide rod (214) is fixedly connected to the side of the connecting column (24), a sliding groove (218) is provided on the inner wall of the body (1), a latching tooth (219) is fixedly connected to the inner side of the sliding groove (218), and the guide rod (214) passes through the sliding groove (218) and is slidably connected.

7. The clamping and positioning tool for thin-walled injection molded parts according to claim 6, characterized in that: An L-shaped rod (215) penetrates the inner side of the guide rod (214) and is slidably connected thereto; the top end of the L-shaped rod (215) is penetrated by and hingedly connected to a second hinge rod (217); a second spring (216) is fixedly connected between the L-shaped rod (215) and the inner wall of the guide rod (214).

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