Fine positioning structure of plastic mould

Abstract

The utility model relates to the technical field of plastic molds, and provides a plastic mold fine positioning structure which comprises a connecting plate, two first clamping blocks and a transmission assembly, a positioning groove is formed in the connecting plate, the two first clamping blocks are arranged on the two sides of the positioning groove respectively, and the transmission assembly is used for enabling the first clamping blocks to clamp a plastic mold. The transmission assembly is arranged at the bottom of the first clamping block, a containing space is formed in one side of the positioning groove and communicates with the positioning groove, a sliding mechanism enabling the transmission assembly to drive the first clamping block to clamp the plastic mold is arranged in the containing space, fixing grooves are formed in the two sides of the positioning groove correspondingly, and clamping assemblies are arranged in the fixing grooves correspondingly; according to the technical scheme, the application range of the plastic mold positioning structure is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, and in particular to a plastic mold precision positioning structure. Background Art

[0002] In the automobile manufacturing industry, plastic molds are mainly used to produce automobile exterior and interior parts, such as headlights, chrome trims, dashboards, etc. In the medical device manufacturing industry, plastic molds are used to produce medical device shells, medical syringes, etc. In short, plastic molds play an important role in the manufacturing process of various industries and have become an indispensable part of modern industrial production.

[0003] An existing nozzle plastic mold positioning structure includes a connecting plate, a first groove is formed on the top of the connecting plate, a bearing is fixedly connected to an inner wall of one side of the first groove, a rotating column is rotatably connected to one end of the bearing, an external thread is provided on the circumferential outer wall of the rotating column, the number of the external threads is two groups, the spiral directions of the two groups of external threads are opposite, a threaded sleeve is threadedly connected to the circumferential outer wall of the external thread, a first clamping plate is fixedly connected to the top of the threaded sleeve, a second groove is formed on the top of the connecting plate, a transverse clamping assembly is provided inside the second groove, the number of the transverse clamping assemblies is two groups, a handle is fixedly connected to the end of the rotating column away from the bearing, and the handle is wheel-shaped.

[0004] The above-mentioned related technology allows the staff to turn the handle so that the two sets of threaded sleeves sleeved on the outer wall drive the first clamping plate to move towards each other, so that there is no need for people to find a fixed center point. The plastic mold can be quickly and effectively fixed through the first clamping plate. However, the transverse clamping assembly is fixed by inserting a fixing pin into a fixing hole. Since the fixing holes are arranged at intervals, the plastic mold can only be fixed at the positions of these fixing holes and cannot be fixed at other positions. As a result, the transverse clamping assembly cannot meet the clamping and positioning requirements of plastic molds of different sizes, which limits its flexibility and usability, thereby reducing its scope of application. Utility Model Content

[0005] The utility model provides a plastic mold precision positioning structure, which improves the application range of the plastic mold positioning structure.

[0006] The technical solution of the utility model is as follows: a plastic mold precision positioning structure, comprising a connecting plate and two first clamping blocks, wherein the connecting plate is provided with a positioning groove, the two first clamping blocks are respectively arranged on both sides of the positioning groove, and further comprising a transmission assembly for enabling the first clamping blocks to clamp the plastic mold;

[0007] The transmission component is arranged at the bottom of the first clamping block, a receiving space is arranged on one side of the positioning groove, and the receiving space is communicated with the positioning groove, a sliding mechanism is arranged in the receiving space so that the transmission component drives the first clamping block to clamp the plastic mold, fixed grooves are arranged on both sides of the positioning groove, and a clamping component is arranged in each fixed groove.

[0008] Furthermore, the sliding mechanism includes a sliding assembly and two connecting rod assemblies, the sliding assembly includes a sliding cylinder and a sliding screw, the sliding cylinder is arranged in an accommodating space, the sliding screw is connected to the internal thread of the sliding cylinder, and one side of the sliding screw passes through the side of the connecting plate and extends to the outside of the connecting plate, the two connecting rod assemblies are respectively arranged on the side of the sliding cylinder and symmetrically arranged, and the connecting rod assembly is rotatably connected to the side of the sliding cylinder, the connecting rod assembly includes a first connecting rod and a second connecting rod, and a rotating column is provided on the side of the accommodating space close to the first clamping block, one end of the first connecting rod is rotatably connected to the side of the sliding cylinder, the other end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the rotating column.

[0009] Furthermore, the transmission assembly includes a gear and a clamping rack. The gear is arranged on the rotating column and fixedly connected to the second connecting rod. The clamping rack is arranged at the bottom of the positioning groove and meshes with the gear. The first clamping block is connected to the clamping rack through a moving block.

[0010] Furthermore, the clamping assembly includes an elastic member, a slider, and a second clamping plate, wherein the second clamping plate is arranged inside the fixing groove, the slider is arranged in the fixing groove and fixedly connected to the second clamping plate, and the elastic member is sleeved on the slider and abuts against the first clamping block.

[0011] Furthermore, a sliding groove is provided on the side of the fixed groove away from the first clamping block, and the sliding groove is communicated with the fixed groove, the side of the sliding block away from the first clamping block extends into the sliding groove and is slidingly connected to the inner wall of the sliding groove, and a fixing component for fixing the sliding groove is provided in the sliding groove, and the fixing component includes a fixing screw and a fixing nut, the fixing screw is arranged on the side of the sliding block in the sliding groove, and the fixing screw is fixedly connected to the sliding block, one side of the fixing screw extends out of the sliding groove, the fixing nut is arranged on the side of the fixing screw away from the sliding groove, and is threadedly connected to the fixing screw, and the fixing nut abuts against the top of the connecting plate.

[0012] Furthermore, guide blocks are provided on both sides of the sliding block, guide grooves are provided on both sides of the sliding groove, and the guide blocks are slidably connected to the inner wall of the guide groove.

[0013] The working principle and beneficial effects of the utility model are:

[0014] The utility model provides a transmission component and a sliding mechanism. When a worker needs to position a plastic mold, he only needs to drive the sliding mechanism to move, and the sliding mechanism will drive the transmission component to rotate, so that the transmission component drives the first clamping block to clamp the plastic mold, thereby clamping molds of different models and improving the application range of the positioning structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 A partial cross-sectional view of the utility model Figure 1 ;

[0018] Figure 3 for Figure 2 A partial cross-sectional schematic diagram;

[0019] Figure 4 for Figure 2 Schematic diagram from top view;

[0020] Figure 5 A partial cross-sectional view of the utility model Figure 2 ;

[0021] Figure 6 for Figure 5 Enlarged schematic diagram at point A in the middle.

[0022] In the figure: 1. connecting plate; 101. first clamping block; 102. positioning groove; 103. accommodating space; 104. fixing groove; 2. sliding cylinder; 201. sliding screw; 202. first connecting rod; 203. second connecting rod; 204. rotating column; 3. gear; 301. clamping rack; 4. elastic member; 401. slider; 402. second clamping plate; 403. slide groove; 404. fixing screw; 405. fixing nut; 406. guide block; 407. guide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] refer to Figure 1-6A plastic mold precision positioning structure includes a connecting plate 1 and two first clamping blocks 101. Anti-slip patterns can be arranged on the two first clamping blocks 101. The anti-slip patterns can increase the contact area between the first clamping blocks 101 and the plastic mold, thereby improving the fixing effect. A positioning groove 102 is arranged on the connecting plate 1. The two first clamping blocks 101 are respectively arranged on both sides of the positioning groove 102. It also includes a transmission component for enabling the first clamping blocks 101 to clamp the plastic mold. The transmission component is arranged at the bottom of the first clamping block 101. An accommodating space 103 is arranged on one side of the positioning groove 102, and the accommodating space 103 is connected to the positioning groove 102. A sliding mechanism for enabling the transmission component to drive the first clamping block 101 to clamp the plastic mold is arranged in the accommodating space 103. Fixed grooves 104 are arranged on both sides of the positioning groove 102, and a clamping component is arranged in each fixed groove 104.

[0025] By setting up the transmission component and sliding mechanism, when the staff needs to position the plastic mold, they only need to drive the sliding mechanism to move, and the sliding mechanism will drive the transmission component to rotate, so that the transmission component drives the first clamping block 101 to clamp the plastic mold, thereby achieving clamping of molds of different models, thereby improving the applicability of the positioning structure.

[0026] Specifically, the sliding mechanism includes a sliding assembly and two connecting rod assemblies. The sliding assembly includes a sliding cylinder 2 and a sliding screw 201. The sliding cylinder 2 is arranged in the accommodating space 103. The sliding cylinder 2 is arranged at the center position of the connecting plate 1. The sliding screw 201 is threadedly connected to the inside of the sliding cylinder 2. One side of the sliding cylinder 2 is threadedly connected to the sliding screw 201, and a through hole is provided on the other side for the sliding screw 201 to penetrate the sliding cylinder 2. One side of the sliding screw 201 passes through the side of the connecting plate 1 and extends to the outside of the connecting plate 1. A handle is provided at one end of the sliding screw 201 outside the connecting plate 1. The handle can help the staff obtain a larger torque, thereby facilitating the staff to rotate the sliding screw 201.

[0027] The two connecting rod assemblies are respectively arranged on the side of the sliding cylinder 2 and are symmetrically arranged, and the connecting rod assembly is rotatably connected to the side of the sliding cylinder 2. The symmetrically arranged connecting rod assembly can quickly help the staff to position the plastic mold and improve work efficiency. The connecting rod assembly includes a first connecting rod 202 and a second connecting rod 203. A rotating column 204 is provided on the side of the accommodating space 103 close to the first clamping block 101. One end of the first connecting rod 202 is rotatably connected to the side of the sliding cylinder 2, and the other end of the first connecting rod 202 is rotatably connected to one end of the second connecting rod 203. The other end of the second connecting rod 203 is rotatably connected to the rotating column 204. The transmission assembly includes a gear 3 and a clamping rack 301. The gear 3 is arranged on the rotating column 204 and is fixedly connected to the second connecting rod 203. The clamping rack 301 is arranged at the bottom of the positioning groove 102 and meshes with the gear 3. The first clamping block 101 is connected to the clamping rack 301 through a moving block.

[0028] When the staff needs to position the plastic mold, they first hold the handle and rotate it, and the handle will drive the sliding screw 201 to rotate. Since the connecting rod assembly limits the radial freedom of the sliding cylinder 2, when the sliding screw 201 rotates, the sliding cylinder 2 will move away from the positioning groove 102, and the first connecting rod 202 and the second connecting rod 203 will move with the sliding cylinder 2. Since one end of the second connecting rod 203 is rotatably connected to the rotating column 204, one end of the second connecting rod 203 rotates around the rotating column 204, and the gear 3 is fixedly connected to the second connecting rod 203, so when the second connecting rod 203 rotates around the rotating column 204, the gear 3 Wheel 3 will also rotate, and the rotation of gear 3 will drive the rack to move in the positioning groove 102, so that the two first clamping blocks 101 move in opposite directions, thereby positioning the plastic mold. The gear 3 rack transmission has high transmission accuracy and stability, and can provide more precise positioning. At the same time, the gear 3 drives the rack to move continuously, so that it can adapt to plastic molds of different models, thereby improving the application range of the positioning structure (it should be noted here that the distance from the center point of the rotating column 204 to the rotating point of the first connecting rod 202 and the sliding cylinder 2 is less than the sum of the lengths of the first connecting rod 202 and the second connecting rod 203, avoiding an invalid distance).

[0029] In this embodiment, the clamping assembly includes an elastic member 4, a slider 401, and a second clamping plate 402. The second clamping plate 402 is arranged inside the fixed groove 104. The slider 401 is arranged in the fixed groove 104 and is fixedly connected to the second clamping plate 402. The elastic member 4 is sleeved on the slider 401 and abuts against the first clamping block 101. A slide groove 403 is provided on the side of the fixed groove 104 away from the first clamping block 101, and the slide groove 403 is connected to the fixed groove 104. The side of the slider 401 away from the first clamping block 101 extends into the slide groove 403 and is slidably connected to the inner wall of the slide groove 403. A fixing assembly for fixing the slider 401 is provided in the slide groove 403.

[0030] When it is necessary to position the side of the plastic mold, first move the second clamping plate 402 in the direction of the compressed elastic member 4, and the slider 401 will be slidably connected with the inner wall of the slide groove 403. In order to prevent the slider 401 from deviating during the movement, guide blocks 406 are provided on both sides of the slider 401, and guide grooves 407 are provided on both sides of the slide groove 403. The guide blocks 406 are slidably connected with the inner wall of the guide groove 407. The guide blocks 406 and guide grooves 407 can avoid the slider 401 from deviating, thereby improving the stability of the second clamping plate 402 in clamping and positioning the plastic mold. At the same time, the plastic mold is placed on the connecting plate 1, and the second clamping plate 402 is released. At this time, the elastic member 4 will automatically restore its deformation, thereby clamping and positioning the side of the plastic mold. Through the clamping assembly, under the action of the elastic member 4, the second clamping plate can automatically and quickly position the side of the plastic mold, which is convenient to operate.

[0031] In order to improve the stability of the clamping of the fixing component, the fixing component includes a fixing screw 404 and a fixing nut 405. The fixing screw 404 is arranged on one side of the slider 401 in the slide groove 403, and the fixing screw 404 is fixedly connected to the slider 401. One side of the fixing screw 404 extends out of the slide groove 403. The fixing nut 405 is arranged on the side of the fixing screw 404 away from the slide groove 403 and is threadedly connected to the fixing screw 404, and the fixing nut 405 abuts against the top of the connecting plate 1. When the second clamping plate 402 clamps the side of the plastic mold under the action of the elastic member 4, the fixing nut 405 can be rotated so that the side of the fixing nut 405 abuts against the top of the connecting plate 1, thereby limiting the freedom of the slider 401 and improving the stability of the clamping of the fixing component.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic mold precision positioning structure, comprising a connecting plate (1) and two first clamping blocks (101), wherein the connecting plate (1) is provided with a positioning groove (102), and the two first clamping blocks (101) are respectively arranged on both sides of the positioning groove (102), characterized in that: It also includes a transmission assembly for enabling the first clamping block (101) to clamp the plastic mold; The transmission assembly is arranged at the bottom of the first clamping block (101); a receiving space (103) is arranged on one side of the positioning groove (102), and the receiving space (103) is communicated with the positioning groove (102); a sliding mechanism is arranged in the receiving space (103) so that the transmission assembly drives the first clamping block (101) to clamp the plastic mold; fixed grooves (104) are arranged on both sides of the positioning groove (102), and a clamping assembly is arranged in each fixed groove (104).

2. A plastic mold precision positioning structure according to claim 1, characterized in that: The sliding mechanism comprises a sliding assembly and two connecting rod assemblies. The sliding assembly comprises a sliding cylinder (2) and a sliding screw (201). The sliding cylinder (2) is arranged in the accommodating space (103). The sliding screw (201) is threadedly connected to the inside of the sliding cylinder (2). One side of the sliding screw (201) passes through the side of the connecting plate (1) and extends to the outside of the connecting plate (1). The two connecting rod assemblies are respectively arranged on the side of the sliding cylinder (2) and are symmetrically arranged. The connecting rod assembly and the sliding cylinder (2) are connected to each other. The cylinder (2) is rotatably connected to the side, the connecting rod assembly includes a first connecting rod (202) and a second connecting rod (203), a rotating column (204) is provided on the side of the accommodating space (103) close to the first clamping block (101), one end of the first connecting rod (202) is rotatably connected to the side of the sliding cylinder (2), the other end of the first connecting rod (202) is rotatably connected to one end of the second connecting rod (203), and the other end of the second connecting rod (203) is rotatably connected to the rotating column (204).

3. A plastic mold precision positioning structure according to claim 2, characterized in that: The transmission assembly comprises a gear (3) and a clamping rack (301); the gear (3) is arranged on a rotating column (204) and fixedly connected to a second connecting rod (203); the clamping rack (301) is arranged at the bottom of a positioning groove (102) and meshes with the gear (3); and the first clamping block (101) is connected to the clamping rack (301) via a moving block.

4. The plastic mold precision positioning structure according to claim 1, characterized in that: The clamping assembly comprises an elastic member (4), a slider (401), and a second clamping plate (402); the second clamping plate (402) is arranged inside a fixing groove (104); the slider (401) is arranged inside the fixing groove (104) and is fixedly connected to the second clamping plate (402); the elastic member (4) is sleeved on the slider (401) and abuts against the first clamping block (101).

5. The plastic mold precision positioning structure according to claim 4, characterized in that: A sliding groove (403) is provided on a side of the fixed groove (104) away from the first clamping block (101), and the sliding groove (403) is communicated with the fixed groove (104). A side of the sliding block (401) away from the first clamping block (101) extends into the sliding groove (403) and is slidably connected to the inner wall of the sliding groove (403). A fixing component for fixing the sliding block (401) is provided in the sliding groove (403), and the fixing component includes a fixing screw (404), a fixing nut (404), and a fixing screw (404). 05), the fixing screw (404) is arranged on one side of the slider (401) in the slide groove (403), and the fixing screw (404) is fixedly connected to the slider (401), one side of the fixing screw (404) extends out of the slide groove (403), the fixing nut (405) is arranged on the side of the fixing screw (404) away from the slide groove (403), and is threadedly connected to the fixing screw (404), and the fixing nut (405) abuts against the top of the connecting plate (1).

6. A plastic mold precision positioning structure according to claim 5, characterized in that: Guide blocks (406) are provided on both sides of the sliding block (401), guide grooves (407) are provided on both sides of the sliding groove (403), and the guide blocks (406) are slidably connected to the inner wall of the guide groove (407).

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