A clamping mechanism and die casting machine

Abstract

The present invention discloses a clamping mechanism and a die-casting machine, wherein the clamping mechanism comprises a clamping seat, a driving mechanism, a clamping component and a wear-resistant component. The die-casting machine comprises a clamping mechanism. The clamping component is driven by the driving mechanism to make a reciprocating motion close to or away from the wear-resistant component in a direction intersecting with the sliding direction of the clamping seat, and can maintain a close contact with the wear-resistant component by static friction when moving close to the wear-resistant component. When the movable platen and the fixed platen are in a mold closing state, the driving mechanism only needs to drive the clamping component to retract (or extend) toward the wear-resistant component so that the clamping component closely contacts the wear-resistant component fixed on the frame by static friction, thereby locking the movable platen on the frame; on the contrary, when the driving mechanism drives the clamping component to extend (or retract) away from the wear-resistant component, the clamping component is separated from the wear-resistant component, thereby releasing the clamping effect, making the structure of the clamping mechanism simple and compact, and facilitating its processing and manufacturing.

Description

Technical Field

[0001] The invention relates to the technical field of die casting, and in particular to a die locking mechanism and a die casting machine. Background Art

[0002] A die-casting machine is required in the die-casting molding process. The die-casting machine mainly includes a frame, a fixed platen, a movable platen and a locking mechanism, wherein the fixed platen is fixed on the frame, the movable platen can be slidably arranged on the guide rail of the frame and can slide toward or away from the fixed platen, and the locking mechanism is used to lock the movable platen on the frame when the movable platen and the fixed platen form an injection cavity, to prevent the movable platen from being subjected to the reverse impact force of the material in the injection cavity during the injection process, and the movable platen moves toward and away from the fixed platen; when the movable platen needs to slide, the locking mechanism releases the locking effect on the movable platen.

[0003] like Figure 1 As shown, the existing clamping mechanism includes a clamping base 9 (partially shown in the figure), a hydraulic cylinder, a first wedge block 101, a second wedge block 102, a clamping plate 105 and a wedge groove 104 provided on the side wall of the guide rail 4. The movable template is fixed on the locking mold base, and the hydraulic cylinder, the first wedge block and the second wedge block are all arranged on the locking mold base. The telescopic shaft of the hydraulic cylinder is connected to the first wedge block, and the first wedge block is fixedly connected to the locking mold base; the second wedge block is located between the wedge-shaped groove and the first wedge block, and the outer wall surface of the second wedge block is provided with a T-shaped protrusion inclined and protruding toward the first wedge block. The inner wall of the first wedge block is provided with a T-shaped groove that cooperates with the T-shaped protrusion and is inclined. The T-shaped protrusion is inserted into the T-shaped groove to form an inclined sliding connection. The T-shaped protrusion is inclined from the outside to the inside in the horizontal direction. The inner end of the second wedge block can extend into the wedge-shaped groove. The inner top of the second wedge block is provided with a locking template 105, and the top inner wall of the wedge-shaped groove is provided with a wear-resistant plate 103. A slope can be formed between the locking template and the wear-resistant plate. The inclination direction of the slope is downward from the outside to the inside.

[0004] The clamping mechanism of the above structure drives the first wedge block to slide in the horizontal direction (the same as the sliding direction of the clamping seat) through the hydraulic cylinder to drive the second wedge block to slide in the front-back direction, so that the clamping plate is embedded in the wedge groove and tightly abuts against the wear plate in the wedge groove in the vertical direction to form a static friction abutment, restricting the clamping seat on the frame, so that the movable plate is in a stationary state relative to the frame, or the clamping plate is pulled out of the wedge groove, and the clamping plate and the wear plate are separated vertically to release the clamping effect. However, the clamping mechanism needs to open a wedge groove on the guide rail. Since the telescopic direction of the hydraulic cylinder is the same as the sliding direction of the clamping seat, the two wedge blocks need to cooperate to enable the clamping plate to form a static friction abutment with the wear plate in the vertical direction (intersecting the sliding direction of the clamping seat) to form a clamping force, which makes the structure of the clamping mechanism complex and inconvenient to manufacture. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the existing clamping mechanism requires a wedge-shaped groove on the guide rail and the cooperation of two wedge-shaped blocks to enable the clamping plate and the wear-resistant plate to form a static frictional clamping force, which makes the structure of the clamping mechanism complex and inconvenient to manufacture.

[0006] To this end, the present invention provides a clamping mechanism, comprising

[0007] A clamping base is slidably arranged on the frame;

[0008] At least one driving mechanism, fixedly connected to the clamping base;

[0009] A clamping component connected to the driving mechanism;

[0010] A wear-resistant component is fixedly mounted on the frame and arranged opposite to the mold clamping component in a direction intersecting with the sliding direction of the mold clamping seat;

[0011] The clamping component is driven by the driving mechanism to reciprocate towards or away from the wear-resistant component in a direction intersecting the sliding direction of the clamping seat, and can maintain close contact with the wear-resistant component by static friction when moving towards the wear-resistant component.

[0012] Optionally, in the above-mentioned mold locking mechanism, the sliding direction of the mold locking seat is perpendicular to the reciprocating direction of the driving mechanism.

[0013] Further preferably, in the above-mentioned mold locking mechanism, the mold locking component and the wear-resistant component both extend along the sliding direction of the mold locking base.

[0014] Optionally, the above-mentioned clamping mechanism further includes at least one friction component fixed on the surface of the clamping component facing the wear-resistant component; when the clamping component moves close to the wear-resistant component, the clamping component forms the static friction force between the friction component and the wear-resistant component.

[0015] Optionally, in the above-mentioned mold locking mechanism, there are at least two friction components and at least two wear-resistant components, and the friction components correspond to the wear-resistant components one by one.

[0016] Optionally, in the above-mentioned mold locking mechanism, the driving mechanism is connected to the surface of the mold locking component on one side facing the wear-resistant component; and the friction component is arranged away from the connection position between the driving mechanism and the mold locking component.

[0017] Optionally, in the above-mentioned mold locking mechanism, any one of the driving mechanisms comprises at least two telescopic actuators, and all the telescopic actuators are evenly arranged along the sliding direction of the mold locking base.

[0018] Optionally, in the above-mentioned clamping mechanism, there are at least two driving mechanisms, wherein the two driving mechanisms are symmetrically arranged on the frame.

[0019] The present invention also provides a die-casting machine, comprising a frame; a clamping mechanism as described above; a fixed die plate fixed on the frame; and a movable die plate fixed on the clamping seat, the movable die plate being opposite to the fixed die plate.

[0020] Optionally, in the above-mentioned die-casting machine, the frame is provided with a clearance hole extending along the sliding direction of the clamping die seat; the clamping die component is inserted into the clearance hole, and the wear-resistant component is fixed on the inner wall of the clearance hole and is located between the clamping die component and the clamping die seat.

[0021] Further optionally, in the above-mentioned die-casting machine, the frame includes a base, and at least two L-shaped brackets fixed on the base and arranged relatively to each other; the fixed template is fixed on the side wall of the vertical part of the L-shaped bracket close to the horizontal part; the locking mold seat is slidably disposed on the top of the horizontal part of the L-shaped bracket through a guide rail; and the clearance hole is disposed on the horizontal part of the L-shaped bracket.

[0022] Optionally, in the above-mentioned die-casting machine, there are at least three driving mechanisms, wherein the three driving mechanisms are respectively distributed on the outsides of the two L-shaped brackets and between the two L-shaped brackets.

[0023] The technical solution of the present invention has the following advantages:

[0024] 1. The clamping mechanism provided by the present invention comprises a clamping seat, at least one driving mechanism, a clamping component and a wear-resistant component. The reciprocating motion direction of the driving mechanism intersects with the sliding direction of the clamping seat. In the clamping mechanism of this structure, when the clamping seat slides, the driving mechanism and the clamping component are driven to slide as a whole. When the movable platen and the fixed platen are in the mold closing state, the driving mechanism only needs to drive the clamping component to retract (or extend) toward the wear-resistant component, so that the clamping component is tightly abutted against the wear-resistant component fixed on the frame with static friction. At this time, the clamping component and the wear-resistant component remain relatively stationary on the frame, so that the movable platen fixed on the clamping seat is in a stationary state relative to the frame, and then the movable platen and the fixed platen remain relatively stationary, so that the movable platen is locked on the frame; on the contrary, when the driving mechanism drives the clamping component to extend (or retract) away from the wear-resistant component, the clamping component is separated from the wear-resistant component, so that the clamping effect is released, so that the structure of the clamping mechanism is simple and compact, and the processing and manufacturing of the clamping mechanism is convenient and the manufacturing cost is low.

[0025] 2. In the clamping mechanism provided by the present invention, the clamping component and the wear-resistant component both extend along the sliding direction of the clamping seat, so that the clamping component and the wear-resistant component are arranged parallel to the sliding direction of the clamping seat, which is convenient for the processing, manufacturing and installation of the clamping component and the wear-resistant component. At the same time, when the driving mechanism drives the clamping component to move toward the wear-resistant component, the clamping component is more likely to abut against the wear-resistant component, thereby increasing the contact area between the two, and transmitting the force acting on the wear-resistant component to the frame more evenly, so that the frame is subjected to more even force.

[0026] 3. The clamping mechanism provided by the present invention also includes at least one friction component fixed on the surface of the clamping component facing the wear-resistant component; the clamping component forms the static friction force between the friction component and the wear-resistant component, and multiple friction components are arranged on the clamping component to form multiple contact points between the multiple friction components and the wear-resistant component. In view of the uneven surface of the friction component itself, the roughness of the contact between the clamping component and the wear-resistant component can be increased, the static friction force between the two can be increased, and the clamping ability of the clamping mechanism can be improved.

[0027] 4. In the mold locking mechanism provided by the present invention, any of the driving mechanisms comprises at least two telescopic drivers, all of which are evenly arranged along the sliding direction of the mold locking base, and a plurality of telescopic drivers apply uniform pressure to the mold locking component, so that the force transmitted to the frame by the mold locking component through the wear-resistant component is more evenly distributed on the frame, so that the deformation at different positions on the frame is uniform and small, thereby making the mold locking base, the movable platen and the frame become a whole to bear the force during mold locking.

[0028] 5. The die-casting machine provided by the present invention comprises a frame; a clamping mechanism as described in any one of the above; a fixed die plate fixed on the frame; and a movable die plate fixed on the clamping seat, wherein the movable die plate is opposite to the fixed die plate.

[0029] The die-casting machine of this structure includes the above-mentioned die-locking mechanism, so that during the die-locking process of the die-casting machine, the die-locking mechanism can achieve die locking while having a simple structure, which facilitates the processing and manufacturing of the die-casting machine and reduces the manufacturing cost.

[0030] 6. The die-casting machine provided by the present invention has a frame provided with a clearance hole extending along the sliding direction of the clamping die seat; the clamping die component is inserted into the clearance hole, and the wear-resistant component is fixed on the inner wall of the clearance hole and is located between the clamping die component and the clamping die seat.

[0031] The die-casting machine of this structure is provided with a clearance hole on the frame, and the wear-resistant parts and the clamping parts are arranged in the clearance hole, so that the structure of the die-casting machine is more compact and the occupied space is small, which is convenient for the processing of the frame and the installation and removal of the wear-resistant parts and the clamping parts; at the same time, it is convenient for the clamping parts and the wear-resistant parts to be more evenly transmitted to the frame when the clamping parts and the wear-resistant parts are clamped, thereby making the deformation of the frame more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a partially enlarged schematic diagram of a clamping mechanism in the prior art;

[0034] Figure 2 A schematic structural diagram of a die-casting machine provided in Example 2 of the present invention;

[0035] Figure 3 for Figure 2 A schematic diagram of the structure of the die casting machine in the front view direction;

[0036] Figure 4 for Figure 3 Schematic diagram of the cross section of the die casting machine along the AA direction;

[0037] Figure 5 for Figure 2 Schematic diagram of the structure on the left side of the medium die casting machine;

[0038] Description of reference numerals:

[0039] 1- rack; 11- L-shaped bracket; 12- clearance hole; 13- base;

[0040] 2-moving template; 3-fixed template; 4-guide rail;

[0041] 51- telescopic driver; 52- mounting seat;

[0042] 6- clamping part; 7- friction part; 8- wear-resistant part; 9- clamping seat; 10- slide;

[0043] 101 - first wedge block; 102 - second wedge block; 103 - wear-resistant plate; 104 - wedge groove. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Example 1

[0047] This embodiment provides a clamping mechanism such as Figures 2 to 5 As shown, it includes a clamping seat 9, multiple driving mechanisms, a clamping component 6, a friction component 7 and a wear-resistant component 8.

[0048] The clamping seat 9 is slidably arranged on the frame 1, for example, a guide rail 4 is fixed on the frame 1. Figure 2 As shown, the guide rail 4 is Figure 2 The clamping die seat 9 extends in the left-right direction, and the clamping die seat 9 is slidably arranged on the guide rail 4. In the die casting machine, the movable die plate 2 is fixedly mounted on the clamping die seat 9, and the bottom of the clamping die seat 9 is provided with a slide groove 10 corresponding to the guide rail 4. The slide groove 10 is sleeved on the guide rail 4, so that the clamping die seat 9 drives the movable die plate 2 to slide synchronously on the guide rail 4. For example, there are two guide rails 4, and correspondingly there are also two slide grooves 10.

[0049] There are multiple driving mechanisms, such as Figure 2 As shown, the frame 1 is provided with a plurality of mounting seats 52 parallel to the guide rail 4, and the plurality of mounting seats 52 are fixedly connected to the clamping seat 9. For example, three mounting seats 52 are provided, each mounting seat 52 is provided with a driving mechanism, and each driving mechanism includes at least two telescopic drivers 51, for example, two, three, four, five, etc., and the specific number of settings is determined according to actual needs, and the telescopic drivers 51 are evenly arranged along the sliding direction of the clamping seat 9.

[0050] Optionally, the telescopic drive 51 is a hydraulic cylinder or a pneumatic cylinder. The telescopic direction of the telescopic drive 51 intersects with the sliding direction of the clamping base 9, for example, at 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, 89 degrees, etc. The telescopic direction of the drive mechanism is preferably perpendicular to the sliding direction of the clamping base 9, for example, Figure 2 As shown, the sliding direction of the clamping seat 9 is the horizontal direction, and the telescopic direction of the telescopic driver 51 is the vertical direction.

[0051] For example, the hydraulic cylinder in this embodiment can be a hydraulic cylinder with two oil chambers, for example, a first oil chamber and a second oil chamber are formed between the two ends of the piston in the hydraulic cylinder and the hydraulic cylinder housing, respectively. When the hydraulic cylinder is working, the first oil chamber and the second oil chamber can be pressurized respectively, and the telescopic shaft connected to the piston can be retracted or extended according to the pressure difference between the first oil chamber and the second oil chamber. Similarly, the air cylinder can also be an air cylinder with two air chambers, and the first air chamber and the second air chamber are formed between the two ends of the piston and the housing of the air cylinder, respectively. By introducing gas into the two air chambers, the telescopic shaft of the air cylinder can be extended or retracted according to the pressure difference between the two air chambers.

[0052] The locking plate 6, friction part 7, and wear-resistant part 8 are all in the form of plates, namely, a locking plate, a friction block, and a wear-resistant plate, respectively. Optionally, the locking plate is one piece, the friction blocks are multiple, and the wear-resistant plates are multiple, and the friction blocks correspond to the wear-resistant plates one by one. The locking plate is fixed to the bottom of the telescopic shaft of each telescopic driver 51 of the multiple driving mechanisms; the multiple friction blocks avoid the bottom of the telescopic shaft of the telescopic driver 51 of the driving mechanism and are fixed to the locking plate. For example, there are three driving mechanisms, each of which includes five telescopic drivers 51, and there are three friction blocks. Figure 2 and Figure 4 As shown, three friction blocks and three drive mechanisms are Figure 2 Middle front-back direction (corresponding to Figure 4 The left and right directions in the figure are arranged alternately in sequence.

[0053] like Figure 4 As shown, the wear-resistant plates are multiple and are fixed on the frame 1, and are arranged in a direction intersecting with the sliding direction of the clamping mold seat 9 (for example Figure 2 The wear-resistant plate is located above the friction block, and the friction block is arranged in a one-to-one relationship with the friction block of the mold clamping member 6. For example, the wear-resistant plate is located above the friction block, and the structure of the mold clamping mechanism is compact. Figure 2 , Figure 3 and Figure 4As shown, a clearance hole 12 extending along the sliding direction of the clamping seat 9 can be provided on the frame 1, for example, a long waist hole, and multiple wear-resistant plates are fixed on the inner wall at the top of the clearance hole 12. The wear-resistant plates and friction blocks are inserted into the clearance hole 12 and are located below the wear-resistant plates. The locking plate can slide synchronously in the clearance hole with the clamping seat. Optimally, the length of the clearance hole is the same as the sliding stroke of the clamping seat. The clearance hole limits the sliding range of the clamping seat. The wear-resistant plate is along the sliding direction of the clamping seat, and the length of the wear-resistant plate is the same as the length of the top inner wall of the clearance hole.

[0054] The locking template and the friction block are driven by the telescopic driver 51 of multiple driving mechanisms to make reciprocating motion in the vertical direction towards or away from the wear-resistant plate. When the friction block moves towards the wear-resistant plate, it can maintain close contact with the wear-resistant plate by static friction, thereby realizing the locking function of the movable template 2.

[0055] Optimally, the locking plate, friction block and wear-resistant plate all extend along the sliding direction of the locking plate seat 9, so that when the driving mechanism drives the locking plate, the friction block can more easily contact the wear-resistant plate, and the contact area between the friction block and the wear-resistant plate is larger, so that the force exerted on the wear-resistant plate is transmitted to the frame over a larger area, so that the frame is evenly stressed; since the surface of the friction block itself is a concave-convex surface, the contact area between the friction block and the wear-resistant plate is larger, and the roughness of the contact between the friction block and the wear-resistant plate is increased, thereby increasing the static friction between the friction block and the wear-resistant plate, ensuring the locking force formed between the friction block and the wear-resistant plate, and further improving the locking capacity of the locking mechanism.

[0056] Optimally, there are at least two driving mechanisms and an even number of them are symmetrically arranged on the frame 1, so that the driving mechanisms can apply pressure to the locking plate, the locking plate is evenly stressed, and the force transmitted to the wear-resistant plate is evenly distributed on the frame.

[0057] In the clamping mechanism of this structure, when the clamping base 9 slides on the guide rail 4 from the direction away from the fixed mold plate 3 to the direction close to the fixed mold plate 3, the movable mold plate 2 gradually approaches the fixed mold plate 3 ( Figure 2 and Figure 3 In this process, the mounting seat 52, the driving mechanism, the locking plate, and the friction block all slide synchronously with the locking plate 9 and the movable plate 2 on the guide rail 4. When the movable plate 2 and the fixed plate 3 are molded together to form an injection chamber, the locking plate 9 and the movable plate 2 stop sliding on the guide rail 4; at this time, the telescopic driver 51 of the driving mechanism, such as a hydraulic cylinder, applies pressure to drive the locking plate and the friction block to retract toward the direction close to the wear-resistant plate ( Figure 3The upward movement in the middle makes the friction blocks correspond to the wear-resistant plates one by one and abut against each other tightly. As the multiple hydraulic cylinders continuously apply pressure to the locking plate, the friction blocks and the wear-resistant plates remain stationary due to static friction, thereby locking the movable plate 2 on the frame 1. When the injection process is over and the movable plate 2 needs to be separated from the fixed plate 3, the telescopic driver 51 of the driving mechanism drives the locking plate to extend downward in the vertical direction, so that the friction blocks are separated from the corresponding wear-resistant plates, and the locking effect on the movable plate 2 is released. After that, the driving mechanism stops moving, and the driving mechanism, the locking plate and the friction blocks slide on the guide rail 4 along with the clamping seat 9 and the movable plate 2 in the direction away from the fixed plate 3, so that the movable plate 2 is reset to the starting position.

[0058] In the clamping mechanism in this embodiment, the driving mechanism only needs to drive the clamping plate and the friction block to retract in the vertical direction so that the friction block and the wear-resistant plate abut against each other by static friction to achieve clamping. The driving mechanism drives the clamping plate and the friction block to extend in the vertical direction so that the friction block and the wear-resistant plate are separated to release the clamping effect, thereby simplifying the structure of the entire clamping mechanism, facilitating the processing and manufacturing of the clamping mechanism and reducing the manufacturing cost, and also simplifying the installation and disassembly of the clamping plate, the driving mechanism, the mounting seat 52, and the guide rail 4 on the frame 1.

[0059] In addition, when each driving mechanism includes multiple telescopic drivers 51, the multiple telescopic drivers 51 apply uniform pressure to the locking plate, so that the force transmitted to the wear-resistant plate in the clearance hole by the locking plate through the friction block is more evenly distributed on the frame 1, so that the deformation at different positions on the frame 1 is uniform and small, so as to prevent the clamping seat 9 from applying a force to the frame 1 at one position, so that the force at this position of the frame 1 is concentrated, causing different deformations at different positions of the frame 1, and affecting the service life of the frame 1. In this embodiment, the clamping seat 9, friction block, wear-resistant plate, movable plate 2, guide rail 4 and frame 1 of the clamping mechanism become a whole to bear force when clamping, so that the force of each component is more uniform, thereby extending the service life of each component.

[0060] As an alternative embodiment, the number of telescopic actuators 51 set in each driving mechanism can also be one, and it is only necessary to increase the output pressure of a single telescopic actuator acting on the locking template, or other quantities. The specific setting number is determined according to actual needs and is not limited here.

[0061] As an alternative embodiment, the positions of the locking plate and the wear-resistant plate can be swapped. For example, the locking plate and the friction block are located above the wear-resistant plate. In this case, during the locking process, the telescopic driver 51 drives the locking plate to extend downward, so that the above-mentioned static friction force is formed between the friction block and the wear-resistant plate to tightly abut. On the contrary, during the release of the locking process, the telescopic driver 51 drives the locking plate to retract upward, so that the friction block is separated from the locking plate.

[0062] As a variation of the telescopic drive, the hydraulic cylinder or the pneumatic cylinder may also be replaced with an existing drive mechanism to drive the locking plate to perform telescopic movement.

[0063] As a further variant implementation, the friction block may not be provided, and only the locking plate may be provided. In this case, the above-mentioned static friction force is formed by the direct contact between the locking plate and the wear-resistant plate, and the above-mentioned mold locking function can also be achieved. In this case, it is best to arrange the telescopic drive 51 away from the wear-resistant plate, and the surface of the locking plate facing the wear-resistant plate may be roughened to increase the static friction force when the locking plate and the wear-resistant plate are locked.

[0064] As a modified embodiment, the above-mentioned clamping mechanism only needs to include at least one driving mechanism, a clamping component 6 and a wear-resistant component 8. The clamping component 6 is driven by the driving mechanism to make a telescopic movement towards or away from the wear-resistant component 8 in a direction intersecting the sliding direction of the clamping seat 9, and when moving towards the wear-resistant component 8, it can maintain a close contact with the wear-resistant component 8 by static friction force. This allows the clamping mechanism to achieve clamping while having a simple structure.

[0065] Example 2

[0066] This embodiment provides a die-casting machine, such as Figures 2 to 5 As shown, it includes a frame 1, any one of the clamping mechanisms provided in Example 1, a movable platen 2 and a fixed platen 3. The fixed platen 3 is fixed on the frame 1; the movable platen 2 is fixed on the clamping seat 9 and is opposite to the fixed platen 3. The die-casting machine of this embodiment, because it includes the clamping mechanism in Example 1, makes the structure of the die-casting machine compact and simple, easy to process and manufacture, and has low manufacturing cost. During the clamping process, the frame 1 is subjected to uniform force and has a small deformation.

[0067] The frame 1 is provided with a clearance hole 12 extending along the sliding direction of the clamping mold seat 9; the clamping mold component 6 is inserted into the clearance hole 12, and the wear-resistant component 8 is fixed on the inner wall of the clearance hole 12 and is located between the clamping mold component 6 and the clamping mold seat 9. For the specific setting method, please refer to the setting method between the clearance hole 12 and the clamping mold plate and the wear-resistant plate in Example 1.

[0068] More preferably, if Figure 2 , Figure 4 and Figure 5 As shown, the frame 1 includes a base 13 and two L-shaped brackets 11 fixed on the base 13 and arranged opposite to each other to form an L-shaped frame 1. The fixed template 3 is fixed on the side wall of the vertical part of the L-shaped bracket 11 close to the horizontal part; the clamping seat 9 is slidably arranged on the top of the horizontal part of the L-shaped bracket 11 through the guide rail 4; the clearance hole 12 is arranged on the horizontal part of the L-shaped bracket 11, and the movable template 2 is fixed on the surface of the clamping seat facing the fixed template (for example Figure 2The left side wall of the middle clamping mold seat 9). Optimally, there are three drive mechanisms, wherein the three drive mechanisms extend vertically and along Figure 3 Middle front-back direction (corresponding to Figure 4 In the left and right directions), they are respectively distributed on the outside of the two L-shaped brackets 11 and between the two L-shaped brackets 11, so that the arrangement of multiple driving mechanisms, the clamping component 6, the wear-resistant component 8 and the frame 1 is more compact, and the space occupied by the clamping mechanism is smaller.

[0069] As a variation, the rack 1 can also be provided with more L-shaped brackets 11, and more driving mechanisms can be provided accordingly. For example, if there are three L-shaped brackets, four corresponding driving mechanisms can be provided. Figure 3 The front and rear directions are arranged alternately.

[0070] Alternatively, as a variation, the frame 1 may not be provided with the above-mentioned clearance hole, and the wear-resistant component and the mold-locking component can achieve the above-mentioned mold-locking effect as long as they are arranged on the frame in a direction intersecting with the sliding direction of the mold-locking seat. For example, the mold-locking component and the wear-resistant component are directly fixed on the same side wall of the frame. Preferably, the mold-locking component and the wear-resistant component are at least two groups, symmetrically distributed on both sides of the frame.

[0071] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A clamping mechanism, characterized in that: include A clamping seat (9) is slidably disposed on the frame (1); At least one driving mechanism fixedly connected to the clamping seat (9); A clamping component (6) connected to the driving mechanism; A wear-resistant component (8) fixedly mounted on the frame (1) and arranged opposite to the mold clamping component (6) in a direction intersecting with the sliding direction of the mold clamping seat (9); The mold locking component (6) is driven by the driving mechanism to make a reciprocating motion in a direction intersecting the sliding direction of the mold locking seat (9) to approach or move away from the wear-resistant component (8), and when moving close to the wear-resistant component (8), it can maintain a close contact with the wear-resistant component (8) by static friction force; The driving mechanism is connected to a surface of the clamping component (6) on one side facing the wear-resistant component (8); The sliding direction of the clamping seat is perpendicular to the reciprocating direction of the driving mechanism; It also includes at least one friction component (7) fixed on a surface of the clamping component (6) on a side facing the wear-resistant component (8); When the mold locking component (6) moves close to the wear-resistant component (8), the mold locking component (6) forms the static friction force between the friction component (7) and the wear-resistant component (8); There are at least two driving mechanisms, wherein the two driving mechanisms are symmetrically arranged on the frame (1).

2. The clamping mechanism according to claim 1, characterized in that: The mold locking component (6) and the wear-resistant component (8) both extend along the sliding direction of the mold locking seat (9).

3. The clamping mechanism according to claim 1, characterized in that: There are at least two friction components (7) and at least two wear-resistant components (8), and the friction components (7) correspond to the wear-resistant components (8) in a one-to-one manner.

4. The clamping mechanism according to claim 1, characterized in that: The friction component (7) is arranged away from the connection position between the driving mechanism and the clamping component (6).

5. The clamping mechanism according to any one of claims 1 to 4, characterized in that: Any of the driving mechanisms comprises at least two telescopic drivers (51), and all of the telescopic drivers (51) are evenly arranged along the sliding direction of the clamping seat (9).

6. A die casting machine, characterized in that: include The frame (1); The clamping mechanism according to any one of claims 1 to 5; A fixed template (3) fixed on the frame (1); A movable die plate (2) is fixed on the clamping seat (9), and the movable die plate (2) is opposite to the fixed die plate (3).

7. The die casting machine according to claim 6, characterized in that: The frame (1) is provided with a clearance hole (12) extending along the sliding direction of the clamping seat (9); The mold locking component (6) is inserted into the clearance hole (12), and the wear-resistant component (8) is fixed on the inner wall of the clearance hole (12) and is located between the mold locking component (6) and the mold locking seat (9).

8. The die casting machine according to claim 7, characterized in that: The frame (1) comprises a base, and at least two L-shaped brackets (11) fixed on the base (13) and arranged opposite to each other; The fixed template (3) is fixed to a side wall of the vertical portion of the L-shaped bracket (11) close to the horizontal portion of the L-shaped bracket; The clamping seat (9) is slidably arranged on the top of the horizontal part of the L-shaped bracket (11) via a guide rail (4); The clearance hole (12) is arranged on the horizontal part of the L-shaped bracket (11).

9. The die casting machine according to claim 8, characterized in that: There are at least three driving mechanisms, wherein the three driving mechanisms extend vertically and are respectively distributed on the outsides of the two L-shaped brackets (11) and between the two L-shaped brackets (11).

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