Anti-loosening precision mold

Abstract

The utility model discloses an anti-loose precision die in the technical field of precision dies, which comprises a base and a top plate, the top plate is positioned above the base, a lower die is inserted into the top of the base, transmission bins are arranged on the left side and the right side in the base, a first motor is fixedly connected to the bottom of an inner cavity of the base, and a second motor is fixedly connected to the bottom of the inner cavity of the base. A driving gear is fixedly connected to the top end of a power output shaft of the first motor, gear driven screw rods are rotationally connected to the left side wall and the right side wall of an inner cavity of the base, and the tail ends of the gear driven screw rods on the left side and the right side are connected with the driving gear in an engaged mode; and the outer ends of the gear driven screw rods on the left side and the right side penetrate through the base and extend to inner cavities of the transmission bins on the left side and the right side, and the anti-loosening precision mold is reasonable in structural design, can effectively prevent the influence of mold loosening on the quality of a formed workpiece, and can quickly and conveniently replace the mold according to machining requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of precision molds, in particular to a precision mold that is anti-loosening. Background Art

[0002] Moulds are various molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, moulds are tools used to make shaped objects. This tool is composed of various parts, and different moulds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the material being formed.

[0003] The existing precision molds lack a positioning mechanism for the molds, resulting in a gap between the two molds when the molds are used for processing, which affects the quality of the molded workpiece. In addition, most of the existing precision molds are installed on the mold frame by multiple screws. When the mold needs to be replaced, it is inconvenient to disassemble and install the mold. For this reason, we propose a precision mold that prevents loosening. Utility Model Content

[0004] The purpose of the utility model is to provide a precision mold that prevents loosening, so as to solve the problem mentioned in the above background technology that the existing precision molds lack a positioning mechanism for the molds, resulting in a gap between the two molds when the molds are used for processing, affecting the quality of the molded workpiece, and most of the existing precision molds are installed on the mold frame by multiple screws, which makes it inconvenient to disassemble and install the mold when the mold needs to be replaced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision mold to prevent loosening, comprising a base and a top plate, the top plate is located above the base, a lower mold is inserted on the top of the base, transmission bins are opened on the left and right sides of the base, a first motor is fixedly connected to the bottom of the inner cavity of the base, a driving gear is fixedly connected to the top of the power output shaft of the first motor, the left and right side walls of the inner cavity of the base are rotatably connected with gear driven screws, the ends of the gear driven screws on the left and right sides are meshed and connected with the driving gear, the outer ends of the gear driven screws on the left and right sides penetrate the base and extend to the inner cavity of the transmission bins on the left and right sides, and the outer side walls of the gear driven screws on the left and right sides are screwed with connecting plates, and the tops of the connecting plates on the left and right sides penetrate the left The transmission bin on the right side extends to the top of the base, and the top of the connecting plates on the left and right sides are fixedly connected with a main positioning plate, the inner side walls of the main positioning plates on the left and right sides are in contact with the lower mold, the rear side walls of the inner cavity of the main positioning plates on the left and right sides are fixedly connected with a second motor, the front end of the power output shaft of the second motor on the left and right sides is fixedly connected with a bidirectional screw, the outer side walls of the bidirectional screws on the left and right sides are screwed with auxiliary positioning plates on the front and back sides, the inner side walls of the auxiliary positioning plates on the left and right sides penetrate the main positioning plates on the left and right sides and extend to the outer side walls of the main positioning plates on the left and right sides, the inner side walls of the auxiliary positioning plates on the front and back sides are in contact with the lower mold, the top of the base is fixedly connected with support plates on the left and right sides, and the tops of the support plates on the left and right sides are fixedly connected to the top plate.

[0006] As a further description of the above technical solution:

[0007] The top of the top plate is fixedly connected with an electric push rod, the bottom end of the electric push rod passes through the top plate and extends to the bottom of the top plate, and the tops of the connecting plates on the left and right sides are fixedly connected with mounting plates.

[0008] As a further description of the above technical solution:

[0009] The bottom of the mounting plate is slidably connected with an upper mold, and mounting grooves are provided on the left and right sides of the interior of the mounting plate.

[0010] As a further description of the above technical solution:

[0011] The inner cavities of the installation grooves on the left and right sides are slidably connected with pressure plates, and the inner side walls of the pressure plates on the left and right sides are fixedly connected with tenons on the front and back sides.

[0012] As a further description of the above technical solution:

[0013] The ends of the tenons on the left and right sides pass through the mounting plate and extend to the interior of the upper mold, and the tenons on the left are plugged into the tenons on the right, and connecting rods are plugged into the left and right side walls of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] The ends of the connecting rods on the left and right sides pass through the mounting plate and extend to the inner cavities of the mounting grooves on the left and right sides, and the ends of the connecting rods on the left and right sides are fixedly connected to the pressure plates on the left and right sides, and the outer side walls of the connecting rods on the left and right sides are sleeved with return springs.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. For the precision mold to prevent loosening, when the electric push rod is extended to fit the upper mold and the lower mold below, the first motor is started to drive the driving gear to drive the meshing gear driven screws on both sides to rotate, so that the connecting plates installed on the gear driven screws on both sides are brought together, and the main positioning plates on the top of the connecting plates on both sides are brought together to position the upper mold and the lower mold, and then the second motor is started to drive the bidirectional screw to rotate, so that the auxiliary positioning plates on both sides of the bidirectional screw are brought together, and the main positioning plate and the auxiliary positioning plate cooperate with each other to position the fitted upper mold and the lower mold to prevent the mold from loosening, thereby effectively preventing the loosening of the mold from affecting the quality of the formed workpiece.

[0018] 2. For the precision mold that prevents loosening, when the mold needs to be replaced, the lower mold is replaced by taking it out from the positioning groove of the base, and then the connecting rods on both sides are pulled to drive the pressure plates on both sides to squeeze the return springs on both sides, so that the tenons on the pressure plates on both sides cancel the limit fixation on the upper mold, and then the tenons on both sides are reset to the mounting grooves on both sides, and then the upper mold is taken out from the mounting plate, and the replaced mold is reinstalled into the mounting plate, and then the connecting rods on both sides are loosened, so that the return springs on both sides squeezed by the pressure plates on both sides are reset, and the pressure plates on both sides are pushed to move so that the tenons on both sides are inserted into the replaced upper mold to fix the upper mold, so that the mold can be replaced quickly and conveniently according to processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a precision mold for preventing loosening proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of a precision mold for preventing loosening proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the left-side sectional structure of a precision mold for preventing loosening proposed by the utility model;

[0022] Figure 4 The utility model provides a precision mold for preventing loosening. Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 100, base; 110, lower mold; 120, transmission compartment; 130, first motor; 131, driving gear; 140, gear driven screw; 150, connecting plate; 160, main positioning plate; 170, second motor; 171, bidirectional screw; 180, auxiliary positioning plate; 190, supporting plate; 200, top plate; 210, electric push rod; 220, mounting plate; 230, upper mold; 240, mounting groove; 241, pressure plate; 242, tenon; 250, connecting rod; 251, return spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in 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 in 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.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a precision mold that prevents loosening, which can effectively prevent the mold from loosening and affecting the quality of the formed workpiece. The mold can be quickly and conveniently replaced according to processing requirements. Please refer to Figure 1-4, comprising a base 100 and a top plate 200;

[0028] Please refer again Figure 1-3The base 100 is used to install the main structure. The top of the base 100 is plugged with a lower mold 110. The base 100 has transmission compartments 120 on the left and right sides. The bottom of the inner cavity of the base 100 is fixedly connected to a first motor 130. The first motor 130 is used to drive a driving gear 131 to rotate. The top of the power output shaft of the first motor 130 is fixedly connected to a driving gear 131. The driving gear 131 is used to drive a gear driven screw 140 to rotate. The left and right side walls of the inner cavity of the base 100 are rotatably connected with gear driven screws 140. The gear driven screws 140 are used to install a connecting plate 150. The ends of the gear driven screws 140 on the left and right sides are meshed and connected with the driving gear 131. The gear driven screws 140 on the left and right sides are meshed and connected. 0 penetrates the base 100 and extends to the inner cavity of the left and right transmission bins 120, and the outer side walls of the left and right gear driven screws 140 are screwed with connecting plates 150, and the connecting plates 150 are used to install the main positioning plates 160, and the tops of the left and right connecting plates 150 penetrate the left and right transmission bins 120 and extend to the top of the base 100, and the tops of the left and right connecting plates 150 are fixedly connected with the main positioning plates 160, and the main positioning plates 160 are used to position the upper mold 230 and the lower mold 110, and the inner side walls of the left and right main positioning plates 160 are in contact with the lower mold 110, and the rear side walls of the inner cavity of the left and right main positioning plates 160 are fixedly connected with the second motor 170, and the second motor 170 is used to drive the bidirectional screw 1 71, the front end of the power output shaft of the second motor 170 on the left and right sides is fixedly connected with a bidirectional screw 171, the bidirectional screw 171 is used to install the auxiliary positioning plate 180, the outer side walls of the bidirectional screw 171 on the left and right sides are screwed with auxiliary positioning plates 180 on the front and back sides, the auxiliary positioning plates 180 are used to position the upper mold 230 and the lower mold 110, the inner side walls of the auxiliary positioning plates 180 on the left and right sides penetrate the main positioning plates 160 on the left and right sides and extend to the outer side walls of the main positioning plates 160 on the left and right sides, the inner side walls of the auxiliary positioning plates 180 on the front and back sides are in contact with the lower mold 110, the top of the base 100 is fixedly connected with support plates 190 on the left and right sides, and the tops of the support plates 190 on the left and right sides are fixedly connected to the top plate 200, when the electric push rod 2 After the upper mold 230 and the lower mold 110 are fitted together, the first motor 130 is started to drive the driving gear 131 to drive the gear driven screws 140 on both sides that are meshed and connected to rotate, so that the connecting plates 150 installed on the gear driven screws 140 on both sides are brought together, and the main positioning plates 160 on the tops of the connecting plates 150 on both sides are brought together to position the upper mold 230 and the lower mold 110, and then the second motor 170 is started to drive the bidirectional screw 171 to rotate, so that the auxiliary positioning plates 180 on both sides of the bidirectional screw 171 are brought together, so that the main positioning plate 160 and the auxiliary positioning plate 180 cooperate with each other to position the fitted upper mold 230 and the lower mold 110 to prevent the mold from loosening;

[0029] In summary, it can effectively prevent the mold from loosening and affecting the quality of the formed workpiece;

[0030] Please refer again Figure 1-4 The top plate 200 is located above the base 100. Specifically, the top plate 200 is fixedly connected to the top of the base 100 through the left and right support plates 190. The top of the top plate 200 is fixedly connected with an electric push rod 210, and the electric push rod 210 is used to adjust the height of the upper mold 230. The bottom end of the electric push rod 210 passes through the top plate 200 and extends to the bottom of the top plate 200. The tops of the left and right connecting plates 150 are fixedly connected with mounting plates 220, and the mounting plates 220 are used to install the main structure. The bottom of the mounting plate 220 is slidably connected with the upper mold 230. The left and right sides of the interior of 220 are provided with mounting grooves 240. The inner cavities of the mounting grooves 240 on the left and right sides are slidably connected with pressure plates 241, which are used to install tenons 242. The inner side walls of the left and right side pressure plates 241 are fixedly connected with tenons 242 on the front and back sides. The tenons 242 are used to fix the upper mold 230. The ends of the tenons 242 on the left and right sides pass through the mounting plate 220 and extend to the interior of the upper mold 230. The left tenon 242 is plugged with the right tenon 242. The left and right side walls of the mounting plate 220 are plugged with connecting rods 250. The connecting rods 250 are used to connect the pressure plates 241. The ends of the left and right connecting rods 250 penetrate the mounting plate 220 and extend to the inner cavities of the left and right mounting grooves 240, and the ends of the left and right connecting rods 250 are fixedly connected to the left and right pressure plates 241. The outer side walls of the left and right connecting rods 250 are sleeved with return springs 251, and the return springs 251 are used to reset the pressure plates 241. When the mold needs to be replaced, the lower mold 110 is removed from the positioning groove of the base 100 to replace the lower mold 110, and then the connecting rods 250 on both sides are pulled to drive the pressure plates 241 on both sides. After the return springs 251 on both sides are squeezed, the tenons 242 on the pressure plates 241 on both sides cancel the limit fixation on the upper mold 230, and then the tenons 242 on both sides are reset to the mounting grooves 240 on both sides, and then the upper mold 230 is taken out from the mounting plate 220, and the replaced mold is reinstalled into the mounting plate 220, and then the connecting rods 250 on both sides are loosened, so that the return springs 251 on both sides squeezed by the pressure plates 241 on both sides are reset, and the pressure plates 241 on both sides are pushed to move so that the tenons 242 on both sides are inserted into the replaced upper mold 230, and the upper mold 230 is fixed;

[0031] In summary, the mold can be quickly and conveniently replaced according to processing requirements;

[0032] During specific use, the technical personnel in this field, after the electric push rod 210 is extended to make the upper mold 230 and the lower mold 110 below fit together, start the first motor 130 to drive the driving gear 131 to drive the gear driven screws 140 on both sides that are meshed and connected to rotate, so that the connecting plates 150 installed on the gear driven screws 140 on both sides are brought together, and the main positioning plates 160 on the top of the connecting plates 150 on both sides are brought together to position the upper mold 230 and the lower mold 110, and then start the second motor 170 to drive the bidirectional screw 171 to rotate, so that the auxiliary positioning plates 180 on both sides of the bidirectional screw 171 are brought together, so that the main positioning plate 160 and the auxiliary positioning plate 180 cooperate with each other to position the fitted upper mold 230 and the lower mold 110 to prevent the mold from loosening, and when necessary When replacing the mold, the lower mold 110 is replaced by removing it from the positioning groove of the base 100, and then the connecting rods 250 on both sides are pulled to drive the pressure plates 241 on both sides to squeeze the return springs 251 on both sides, so that the tenons 242 on the pressure plates 241 on both sides cancel the limiting fixation on the upper mold 230, and then the tenons 242 on both sides are reset to the mounting grooves 240 on both sides, and then the upper mold 230 is taken out from the mounting plate 220, and the replaced mold is reinstalled into the mounting plate 220, and then the connecting rods 250 on both sides are loosened, so that the return springs 251 on both sides squeezed by the pressure plates 241 on both sides are reset, and the pressure plates 241 on both sides are pushed to move so that the tenons 242 on both sides are inserted into the replaced upper mold 230 to fix the upper mold 230.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A precision mold to prevent loosening, characterized by: The invention comprises a base (100) and a top plate (200), wherein the top plate (200) is located above the base (100), a lower mold (110) is plugged into the top of the base (100), transmission compartments (120) are opened on the left and right sides of the interior of the base (100), a first motor (130) is fixedly connected to the bottom of the inner cavity of the base (100), a driving gear (131) is fixedly connected to the top of the power output shaft of the first motor (130), and the left and right side walls of the inner cavity of the base (100) are rotated. A gear driven screw rod (140) is connected, and the ends of the gear driven screw rods (140) on the left and right sides are meshed and connected with the driving gear (131), and the outer ends of the gear driven screw rods (140) on the left and right sides pass through the base (100) and extend to the inner cavity of the transmission bin (120) on the left and right sides, and the outer side walls of the gear driven screw rods (140) on the left and right sides are screwed with connecting plates (150), and the tops of the connecting plates (150) on the left and right sides pass through the transmission bins (120) on the left and right sides and extend to the inner cavity of the transmission bins (120) on the left and right sides. The connecting plates (150) extend to the top of the base (100), and the tops of the connecting plates (150) on the left and right sides are fixedly connected with main positioning plates (160), the inner side walls of the main positioning plates (160) on the left and right sides are in contact with the lower mold (110), the rear side walls of the inner cavities of the main positioning plates (160) on the left and right sides are fixedly connected with second motors (170), and the front ends of the power output shafts of the second motors (170) on the left and right sides are fixedly connected with bidirectional screws (171), and the outer ends of the bidirectional screws (171) on the left and right sides are fixedly connected with the outer ends of the bidirectional screws (171) on the left and right sides. Auxiliary positioning plates (180) are screwed on the front and rear sides of the side walls, the inner side walls of the auxiliary positioning plates (180) on the left and right sides penetrate the main positioning plates (160) on the left and right sides and extend to the outer side walls of the main positioning plates (160) on the left and right sides, the inner side walls of the auxiliary positioning plates (180) on the front and rear sides are in contact with the lower mold (110), and the left and right sides of the top of the base (100) are fixedly connected with support plates (190), and the tops of the support plates (190) on the left and right sides are fixedly connected to the top plate (200).

2. The anti-loosening precision mold according to claim 1, characterized in that: The top of the top plate (200) is fixedly connected to an electric push rod (210), the bottom end of the electric push rod (210) passes through the top plate (200) and extends to the bottom of the top plate (200), and the tops of the connecting plates (150) on the left and right sides are fixedly connected to mounting plates (220).

3. The anti-loosening precision mold according to claim 2, characterized in that: The bottom of the mounting plate (220) is slidably connected to an upper mold (230), and mounting grooves (240) are formed on the left and right sides of the interior of the mounting plate (220).

4. The anti-loosening precision mold according to claim 3, characterized in that: The inner cavities of the installation grooves (240) on the left and right sides are slidably connected with pressure plates (241), and the inner side walls of the pressure plates (241) on the left and right sides are fixedly connected with tenons (242) at the front and rear sides.

5. The anti-loosening precision mold according to claim 4, characterized in that: The ends of the tenons (242) on the left and right sides pass through the mounting plate (220) and extend to the interior of the upper mold (230), and the tenons (242) on the left are plugged into the tenons (242) on the right, and connecting rods (250) are plugged into the left and right side walls of the mounting plate (220).

6. The anti-loosening precision mold according to claim 5, characterized in that: The ends of the connecting rods (250) on the left and right sides pass through the mounting plate (220) and extend to the inner cavities of the mounting grooves (240) on the left and right sides, and the ends of the connecting rods (250) on the left and right sides are fixedly connected to the pressure plates (241) on the left and right sides, and the outer side walls of the connecting rods (250) on the left and right sides are sleeved with return springs (251).

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