Positioning and clamping tool for die forming machining

Abstract

The utility model provides a kind of positioning clamping tool of mould forming processing belongs to positioning fixture technical field, the positioning clamping tool of mould forming processing has base, two transverse synchronous moving support plates are equipped on base, and the side clamping plate for positioning mould body is connected by bolt on the side of the mutual faraway support plate;The rear side of support plate is equipped with two closure plates that drive support plate synchronous approach, two rear sliding grooves located in the rear side of support plate are passed and set on base, and closure plate is slidably connected in rear sliding groove;The utility model is used to solve the technical problem that abrasion is generated under vibration in processing process by driving through screw rod in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of positioning fixture technology, specifically, it relates to a positioning and clamping fixture for mold forming processing. Background Technology

[0002] In industrial production, in order to improve product production efficiency, product molds are often made in advance. The product shell is quickly produced by injection molding or casting through the mold. When the mold is produced, it is often cut by milling machine or machining center. Then, grinding, polishing and other processes are carried out to form the mold. In order to prevent the mold from shaking and affecting the processing accuracy during the mold processing, special fixtures are used to clamp and fix the mold blank.

[0003] The utility model application CN201922492206.1 (publication number CN211490614U) discloses a fixing fixture for mold processing. When fixing the mold using the fixing fixture, the left and right clamping blocks are pushed to the right and left respectively by the left and right cylinders to fix the mold in the left-right direction. At the same time, the left and right motors drive the left front clamping plate, left rear clamping plate, right front clamping plate and right rear clamping plate to move to clamp and fix the mold in the front-back direction.

[0004] Existing mold positioning and clamping methods mostly rely on screws for driving. The screws are directly connected to the clamping plates to achieve opening and closing. Long-term use, as well as vibrations generated during mold processing, can cause wear on the drive mechanism, affecting normal use. Utility Model Content

[0005] The purpose of this invention is to provide a positioning and clamping fixture for mold forming and processing, which solves the technical problem that existing technologies driven by screws will experience wear due to vibration during the processing.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a positioning and clamping fixture for mold forming and processing, which has a base, wherein the base is provided with two support plates that move laterally and synchronously, and each of the support plates has a side clamping plate for positioning the mold body connected by bolts on the side that is far away from each other.

[0008] The support plate has two closed plates on its rear side that move the support plate closer together. The base has two rear sliding grooves that are located on the rear side of the support plate and the closed plates are slidably connected in the rear sliding grooves.

[0009] The technical advantages of the positioning and clamping fixture for mold forming processing provided by this utility model are as follows:

[0010] Based on the above technical solution, the positioning and clamping fixture for mold forming processing of this utility model can be further improved as follows:

[0011] Furthermore, a rear triangular plate is fixedly installed at the lower end of each of the closed plates. The rear triangular plate is a right triangle. Two rollers B are provided on the left and right sides of the two rear triangular plates. The inclined surfaces of the rear triangular plates are far apart from each other and abut against the rollers B on the same side.

[0012] Furthermore, a telescopic cylinder B is fixedly installed directly below each of the rear sliding grooves. The movable end of the telescopic cylinder B extends upward and is rotatably connected to the roller B at its end.

[0013] Furthermore, the front side of the support plate is provided with two opening plates that drive the support plate to move away synchronously, and the base is provided with two front sliding grooves located on the front side of the support plate, and the opening plates are slidably connected in the front sliding grooves.

[0014] Furthermore, a front triangular plate is fixedly installed at the lower end of the opening plate. The front triangular plate is a right triangle, and a roller A is provided between the two front triangular plates. The inclined surfaces of the front triangular plates are close to each other and abut against the roller A on the same side.

[0015] Furthermore, a telescopic cylinder A is fixedly installed directly below the front slide groove. The movable end of the telescopic cylinder A extends upward and is rotatably connected to the roller A at its end.

[0016] Furthermore, a slide rail is fixedly installed on the base, and two sliders are slidably connected on the slide rail. The bottom wall of the support plate is fixedly installed on the top wall of the slider on the same side.

[0017] The rear wall of the opening plate is fixedly installed on the front wall of the slider on the same side, and the front wall of the closing plate is fixedly installed on the rear wall of the slider on the same side.

[0018] Compared with the prior art, the advantages of the positioning and clamping fixture for mold forming processing provided by this utility model are:

[0019] By separating the drive components (telescopic cylinder A and telescopic cylinder B) from the side clamping plate, the force applied during processing is prevented from being directly transmitted to the drive components, thus affecting their service life; and this setting facilitates the installation and replacement of the drive components.

[0020] By setting two drive components (telescopic cylinder A and telescopic cylinder B), the side clamps can be driven to move closer or further apart, and can be adapted to various mold sizes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a front view of the overall structure of a positioning and clamping fixture for mold forming processing;

[0023] Figure 2 for Figure 1 Top view;

[0024] Figure 3 for Figure 1 Axonometric drawing;

[0025] Figure 4 Isometric view of the right-side clamping plate and drive assembly;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base; 11. Support plate; 12. Side clamp; 13. Slide rail; 14. Slider; 15. Vertical plate; 16. Horizontal plate; 20. Front slide groove; 21. Opening plate; 22. Front triangular plate; 23. Roller A; 24. Telescopic cylinder A; 25. Support seat A; 30. Rear slide groove; 31. Closing plate; 32. Rear triangular plate; 33. Roller B; 34. Telescopic cylinder B; 35. Support seat B. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Example 1

[0034] like Figure 1-4 As shown, this utility model provides a positioning and clamping fixture for mold forming and processing, which has a base 1, wherein the base 1 is provided with two horizontally synchronously moving support plates 11, and the side plates 12 for positioning the mold body are bolted to the side of the support plates 11 that are far apart from each other.

[0035] The support plate 11 has two closed plates 31 on its rear side that move the support plate 11 closer together. The base 1 has two rear sliding grooves 30 that are located on the rear side of the support plate 11. The closed plates 31 are slidably connected in the rear sliding grooves 30.

[0036] Optionally, in the above technical solution, a rear triangular plate 32 is fixedly installed at the lower end of the closing plate 31. The rear triangular plate 32 is a right triangle. Two rollers B33 are provided on the left and right sides of the two rear triangular plates 32. The inclined surfaces of the rear triangular plates 32 are far apart from each other and abut against the rollers B33 on the same side.

[0037] Optionally, in the above technical solution, a telescopic cylinder B34 is fixedly installed directly below the rear slide groove 30. The movable end of the telescopic cylinder B34 extends upward and is rotatably connected to a roller B33 at its end.

[0038] Optionally, in the above technical solution, the front side of the support plate 11 is provided with two opening plates 21 that drive the support plate 11 to move away synchronously.

[0039] The base 1 has two front sliding grooves 20 located on the front side of the support plate 11, and the opening plate 21 is slidably connected in the front sliding grooves 20.

[0040] Optionally, in the above technical solution, a front triangular plate 22 is fixedly installed at the lower end of the opening plate 21. The front triangular plate 22 is a right triangle, and a roller A23 is provided between the two front triangular plates 22. The inclined surfaces of the front triangular plates 22 are close to each other and abut against the roller A23 on the same side.

[0041] Furthermore, buffer pads (such as rubber pads) that completely cover the inclined surfaces are fixedly installed on the inclined surfaces of the front triangle 22 and the rear triangle 32.

[0042] Optionally, in the above technical solution, a telescopic cylinder A24 is fixedly installed directly below the front slide groove 20. The movable end of the telescopic cylinder A24 extends upward and is rotatably connected to a roller A23 at its end.

[0043] Furthermore, the telescopic cylinders A24 and B34 in this paper are both cylinders with guide rods (also called three-axis cylinders), the purpose of which is to make the telescopic cylinders A24 and B34 have high resistance to torsion and lateral loads, and high linear motion accuracy.

[0044] Among them, the thickness of roller A23 and roller B33 is greater than the thickness of front triangle plate 22 and rear triangle plate 32.

[0045] Optionally, in the above technical solution, a slide rail 13 is fixedly installed on the base 1, and two sliders 14 are slidably connected on the slide rail 13. The bottom wall of the support plate 11 is fixedly installed on the top wall of the slider 14 on the same side.

[0046] The rear wall of the opening plate 21 is fixedly installed on the front wall of the slider 14 on the same side, and the front wall of the closing plate 31 is fixedly installed on the rear wall of the slider 14 on the same side.

[0047] The minimum length of the mold is the minimum distance between the two side clamping plates 12 (when the two support plates 11 are attached), and the maximum length of the mold is the maximum distance between the two side clamping plates 12.

[0048] Among them, the side clamp 12 can be replaced to fit a variety of molds;

[0049] Among them, the two side clamps 12 are provided with anti-slip strips on opposite sides to increase the friction between them and the mold;

[0050] Among them, the long straight sides of the front triangle 22 are far apart from each other, and the short straight side of the front triangle 22 is fixedly installed on the bottom wall of the opening plate 21; the long straight sides of the rear triangle 32 are close to each other, and the short straight side of the rear triangle 32 is fixedly installed on the bottom wall of the closing plate 31.

[0051] Among them, the two front sliding grooves 20 are symmetrically arranged, and the two rear sliding grooves 30 are symmetrically arranged.

[0052] Among them, after the two side clamping plates 12 clamp the mold, they are subjected to lateral clamping force;

[0053] Furthermore, the slide rail 13 is made of a high-rigidity linear guide rail (such as a square guide rail) to ensure that the lateral force is mainly borne by the guide rail 13, rather than transmitted to the front triangle plate, the rear triangle plate 32, and the telescopic cylinders A24 and B34. Furthermore, the top walls of the movable ends of the telescopic cylinders A24 and B34 are respectively fixedly mounted with support seats A25 and B35, and rollers A23 and B33 are rotatably connected inside the support seats A25 and B35, respectively.

[0054] Furthermore, two symmetrically arranged vertical plates 15 are fixedly installed on the bottom wall of the base 1, and a horizontal plate 16 is fixedly connected to both vertical plates 15; the fixed end of the telescopic cylinder A24 is symmetrically fixedly installed on the front side of the horizontal plate 16, and the fixed end of the telescopic cylinder B34 is symmetrically fixedly installed on the rear side of the horizontal plate 16.

[0055] In the initial state, the movable ends of telescopic cylinders A24 and B34 are fully retracted, and the two support plates 11 are close together. Adjust the distance between the two side clamping plates 12 to slightly exceed the length of the mold to be formed. Specifically: activate telescopic cylinder A24 to move roller A23 upwards. Roller A23 pushes the two front triangular plates 22 away from each other along the inclined surface of the front triangular plate 22, adjusting the distance between the side clamping plates 12 (after adjustment, the movable end of telescopic cylinder A24 is fully retracted). Then, place the mold to be formed onto the two support plates 11.

[0056] When the mold needs to be positioned and clamped, the mold is clamped by the side clamping plate 12. Specifically: two telescopic cylinders B34 are activated at the same time, so that their moving ends drive the rollers B33 to move upward. During the upward movement of the rollers B33, the two rear triangular plates 32 are pushed inward along the inclined surface of the rear triangular plate 32. The rear triangular plates 32 drive the slider 14 to move along the slide rail 13 through the closing plate 31, so that the two side clamping plates 12 move inward synchronously until the side clamping plates 12 abut against the side wall of the mold (at this time, the moving ends of the telescopic cylinders B34 stop moving), and the mold is positioned in the transverse middle of the base 1.

[0057] During the processing, the position of the movable end of the telescopic cylinder B34 remains unchanged, so that the roller B33 always presses against the rear triangular plate 32 to prevent the side clamping plate 12 from moving during processing. It can be used to grind, drill and perform other operations on the mold. It can be processed by hand tools or by placing the tool under the grinding disc of the grinder, the drill bit of the drilling machine, etc.

[0058] When the mold needs to be removed after processing, the mold is released by the side clamping plate 12: First, the moving end of the telescopic cylinder B34 is fully retracted. At this time, the restriction on the slider 14 is removed, and the support plate 11 and the side clamping plate 12 can move laterally.

[0059] The circumferential surface of roller A23 that contacts the front triangle plate 22 has a groove that mates with the front triangle plate 22. The groove can increase the stability of roller A23 rolling along the inclined surface of the front triangle plate 22. The same groove design can also be added to the fit between roller B33 and the rear triangle plate 32.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning and clamping fixture for mold forming processing, comprising a base (1), characterized in that, The base (1) is provided with two horizontally synchronously moving support plates (11), and each of the support plates (11) is connected by bolts to a side clamping plate (12) for positioning the mold body. The support plate (11) has two closed plates (31) on its rear side that drive the support plate (11) to move closer together. The base (1) has two rear sliding grooves (30) that are located on the rear side of the support plate (11) and the closed plates (31) are slidably connected in the rear sliding grooves (30).

2. The positioning and clamping fixture for mold forming processing according to claim 1, characterized in that, The lower end of each of the closed plates (31) is fixedly installed with a rear triangular plate (32). The rear triangular plate (32) is a right triangle. Two rollers B (33) are provided on the left and right sides of the two rear triangular plates (32). The inclined surfaces of the rear triangular plates (32) are far apart from each other and abut against the rollers B (33) on the same side.

3. The positioning and clamping fixture for mold forming processing according to claim 2, characterized in that, A telescopic cylinder B (34) is fixedly installed directly below each of the rear slide grooves (30). The movable end of the telescopic cylinder B (34) extends upward and is rotatably connected to the roller B (33) at its end.

4. The positioning and clamping fixture for mold forming processing according to claim 1, characterized in that, The front side of the support plate (11) is provided with two opening plates (21) that drive the support plate (11) to move away synchronously. The base (1) is provided with two front sliding grooves (20) located on the front side of the support plate (11). The opening plates (21) are slidably connected in the front sliding grooves (20).

5. The positioning and clamping fixture for mold forming processing according to claim 4, characterized in that, A front triangle plate (22) is fixedly installed at the lower end of the opening plate (21). The front triangle plate (22) is a right triangle. A roller A (23) is provided between the two front triangle plates (22). The inclined surfaces of the front triangle plates (22) are close to each other and abut against the roller A (23) on the same side.

6. The positioning and clamping fixture for mold forming processing according to claim 5, characterized in that, A telescopic cylinder A (24) is fixedly installed directly below each of the front slide grooves (20). The movable end of the telescopic cylinder A (24) extends upward and is rotatably connected to the roller A (23).

7. The positioning and clamping fixture for mold forming processing according to claim 6, characterized in that, A slide rail (13) is fixedly installed on the base (1), and two sliders (14) are slidably connected on the slide rail (13). The bottom wall of the support plate (11) is fixedly installed on the top wall of the slider (14) on the same side. The rear wall of the opening plate (21) is fixedly installed on the front wall of the slider (14) on the same side, and the front wall of the closing plate (31) is fixedly installed on the rear wall of the slider (14) on the same side.

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