Robot arm casting mold and robot arm

Abstract

The utility model discloses a robot arm casting mold and a robot arm, and relates to the technical field of robot arm casting, the robot arm casting mold comprises a supporting seat, a mold closing assembly and a fastening assembly, mounting plates are fixed on the front side and the rear side of the upper part of the supporting seat, and the mold closing assembly is mounted on the inner sides of the mounting plates; and the mold closing assembly comprises a two-way lead screw, moving sleeves and a fixing rod, the two-way lead screw is rotationally arranged on the inner side of the mounting plate, the two moving sleeves are arranged on the outer side of the two-way lead screw in a sleeving mode, and one side of each moving sleeve is connected with the fixing rod. According to the robot arm casting mold and the robot arm, the two moving sleeves drive the first mold and the second mold to move oppositely through the fixing rods correspondingly, so that the first mold and the second mold are tightly attached to achieve mold closing; the upper fastening assembly and the lower fastening assembly are used at the same time, so that the fastening frame with the upper edge and the lower edge being of a U-shaped structure can be clamped on the outer sides of the first mold and the second mold after mold closing, and the upper edge and the lower edge are fastened at the same time so that the mold closing tightness can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of robot arm casting, in particular to a robot arm casting mould and a robot arm. Background Art

[0002] A robot is a machine device that performs work automatically. It can accept human commands, run pre-programmed programs, or act according to principles formulated with artificial intelligence technology. The robot arm is an important assembly part of the robot. In the process of casting the robot arm, injection molding can be performed, so a mold is needed.

[0003] For example, the utility model with application number CN202021202646.5 discloses a robot arm casting mold and a robot arm. The robot arm casting mold similar to the above application currently still has the following shortcomings: during the casting process, it is not convenient to achieve full mold closing between the two molds, and the insufficient tightness of the mold closing can easily affect the molding quality of the robot arm.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a robot arm casting mold and a robot arm are proposed. Utility Model Content

[0005] The utility model aims to provide a robot arm casting mold and a robot arm to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a robot arm casting mold and a robot arm, comprising a support seat, a mold clamping assembly and a fastening assembly, mounting plates are fixed on both the front and rear sides above the support seat, and a mold clamping assembly is installed on the inner side of the mounting plate, the mold clamping assembly comprises a bidirectional screw rod, a movable sleeve and a fixed rod, a bidirectional screw rod is rotatably arranged on the inner side of the mounting plate, and two movable sleeves are arranged on the outer side of the bidirectional screw rod, and a fixed rod is connected to one side of the movable sleeve, a first mold is fixed to one side of the fixed rod on the rear side, and a second mold is fixed to one side of the fixed rod on the front side, a fastening assembly is installed on the lower side of the first mold and the upper side of the second mold, and the fastening assembly comprises a fixed plate, an electric push rod, a connecting rod and a fastening frame, the fixed plate is fixedly connected to the outer side walls of the first mold and the second mold respectively, and an electric push rod is installed on one side of the fixed plate, a connecting rod is fixed to the other end of the electric push rod, and a fastening frame is fixed to the outer side of the connecting rod.

[0007] Furthermore, the mold clamping assembly also includes a side plate and a driving motor. The side of the mounting plate is fixed with a side plate, and the rear side of the mounting plate is installed with a driving motor. The movable sleeve is slidably connected to the side plate.

[0008] Furthermore, four mold cavities are arranged at equal distances inside the first mold and the second mold, and an injection tube is connected above the mold cavity inside the second mold.

[0009] Furthermore, an exhaust nozzle is installed on the lower side of the mold cavity inside the second mold, and an exhaust pipe is connected to the lower side of the exhaust nozzle, and the exhaust pipe is externally connected to a negative pressure exhaust pump.

[0010] Furthermore, a water cooling cavity is fixed inside the second mold, and a water injection pipe is connected to the rear side of the water cooling cavity. Meanwhile, an empty groove is provided inside the first mold corresponding to the water cooling cavity.

[0011] Furthermore, three fastening frames are arranged at equal distances, and all the fastening frames are in a "U"-shaped structure.

[0012] Furthermore, a robot arm includes an arm body, and the arm body is injection molded inside a mold cavity.

[0013] The utility model provides a robot arm casting mold and a robot arm, which have the following beneficial effects:

[0014] The utility model is provided with a mold clamping component, which is convenient for driving the rotation of the bidirectional screw rod through a driving motor, and the movable sleeve is slidably connected with the side plate, thereby driving the two movable sleeves to move toward each other, so that the two movable sleeves respectively drive the first mold and the second mold to move toward each other through the fixed rod so that the two molds are closely fitted to achieve mold clamping. Conversely, after injection molding is completed, it is convenient to move in the opposite direction to separate the first mold and the second mold, so as to take out the formed arm body.

[0015] The utility model is provided with a fastening assembly, which is convenient for simultaneously pushing the connecting rod and the three fastening frames through the electric push rod, and the upper and lower fastening assemblies are used simultaneously so that the fastening frames with "U"-shaped structures on the upper and lower sides can be clamped on the outer sides of the first mold and the second mold after the mold is closed, and the upper and lower sides are fastened simultaneously to further improve the tightness of the mold closing, and four mold cavities are evenly spaced on the inner sides of the first mold and the second mold to facilitate the injection molding of four arm bodies at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a robot arm casting mold and a three-dimensional structure of the robot arm of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a robot arm casting mold and a second mold of the robot arm of the utility model;

[0018] Figure 3 This is a schematic diagram of the rear view structure of a robot arm casting mold and a second mold of the robot arm of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of a robot arm casting mold and a first mold of the robot arm of the utility model;

[0020] Figure 5 The utility model is a schematic diagram of a robot arm casting mold and the arm main body structure of the robot arm.

[0021] In the figure: 1. support seat; 2. mounting plate; 3. mold clamping assembly; 301. bidirectional screw; 302. movable sleeve; 303. fixed rod; 304. side plate; 305. drive motor; 4. first mold; 5. second mold; 6. injection tube; 7. mold cavity; 8. exhaust nozzle; 9. exhaust pipe; 10. water cooling chamber; 11. water injection pipe; 12. arm body; 13. fastening assembly; 1301. fixed plate; 1302. electric push rod; 1303. connecting rod; 1304. fastening frame. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figure 1-Figure 4 As shown, a robot arm casting mold includes a support base 1, a mold clamping assembly 3 and a fastening assembly 13. The support base 1 is fixed with mounting plates 2 on both the front and rear sides above the support base 1, and the mold clamping assembly 3 is installed on the inner side of the mounting plate 2. The mold clamping assembly 3 includes a bidirectional screw rod 301, a movable sleeve 302 and a fixed rod 303. The inner side of the mounting plate 2 is rotatably provided with a bidirectional screw rod 301, and the outer side of the bidirectional screw rod 301 is sleeved with two movable sleeves 302, and one side of the movable sleeve 302 is connected with a fixed rod 303. The mold clamping assembly 3 also includes a side plate 304 and a driving motor 305. The side edge of the mounting plate 2 is fixed with the side plate 304, and the rear side of the mounting plate 2 is installed with a driving motor 305. The movable sleeve 302 is slidably connected with the side plate 304.

[0024] The specific operation is as follows: the driving motor 305 is used to drive the rotation of the bidirectional screw rod 301, and the movable sleeve 302 is slidably connected to the side plate 304, thereby driving the two movable sleeves 302 to move toward each other, so that the two movable sleeves 302 respectively drive the first mold 4 and the second mold 5 to move toward each other through the fixed rod 303 so that the two are tightly fitted to achieve mold closing. Conversely, after the injection molding is completed, it is convenient to move in the opposite direction to separate the first mold 4 and the second mold 5, so as to take out the formed arm body 12.

[0025] like Figure 1-Figure 5As shown, a first mold 4 is fixed to one side of the rear fixing rod 303, and a second mold 5 is fixed to one side of the front fixing rod 303. Four mold cavities 7 are evenly arranged on the inner sides of the first mold 4 and the second mold 5, and an injection tube 6 is connected to the upper side of the mold cavity 7 inside the second mold 5; an exhaust nozzle 8 is installed on the lower side of the mold cavity 7 inside the second mold 5, and an exhaust pipe 9 is connected to the lower side of the exhaust nozzle 8, and the exhaust pipe 9 is externally connected to a negative pressure exhaust pump; a water cooling cavity 10 is fixed inside the second mold 5, and a water injection pipe 11 is connected to the rear side of the water cooling cavity 10, and an empty groove is arranged inside the first mold 4 corresponding to the water cooling cavity 10; a robot arm comprises an arm body 12, and the arm body 12 is injection molded inside the mold cavity 7;

[0026] The specific operation is as follows: four mold cavities 7 are evenly spaced on the inner side of the first mold 4 and the second mold 5 to facilitate the injection molding of four arm bodies 12 at the same time; the exhaust nozzle 8 is provided with a corresponding micro valve; before the injection molding operation, a negative pressure vacuum pump connected to the exhaust pipe 9 can simultaneously evacuate the interior of the four mold cavities 7 for sufficient injection molding; the interior of the water-cooling chamber 10 can be injected with cooling water through the water injection pipe 11 to promote the cooling and molding of the arm body 12.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, the lower side of the first mold 4 and the upper side of the second mold 5 are both installed with a fastening assembly 13, and the fastening assembly 13 includes a fixing plate 1301, an electric push rod 1302, a connecting rod 1303 and a fastening frame 1304. The fixing plate 1301 is fixedly connected to the outer side walls of the first mold 4 and the second mold 5 respectively, and the electric push rod 1302 is installed on one side of the fixing plate 1301, the other end of the electric push rod 1302 is fixed with the connecting rod 1303, and the outer side of the connecting rod 1303 is fixed with a fastening frame 1304; three fastening frames 1304 are arranged at equal distances, and the fastening frames 1304 are all in a "U"-shaped structure;

[0028] The specific operation is as follows: the electric push rod 1302 is used to push the connecting rod 1303 and the three fastening frames 1304 at the same time. The upper and lower fastening components 13 are used at the same time so that the fastening frames 1304 with "U"-shaped structures on the upper and lower sides can be clamped on the outer sides of the first mold 4 and the second mold 5 after the mold is closed. Fastening the upper and lower sides at the same time can further improve the tightness of the mold.

[0029] In summary, if Figure 1-Figure 5As shown, the robot arm casting mold and the robot arm, when in use, can firstly drive the rotation of the bidirectional screw rod 301 through the driving motor 305, and the movable sleeve 302 and the side plate 304 are slidably connected, thereby driving the two movable sleeves 302 to move toward each other, so that the two movable sleeves 302 respectively drive the first mold 4 and the second mold 5 to move toward each other through the fixed rod 303 so that the two are closely fitted to achieve mold closing, and then the connecting rod 1303 and the three fastening frames 1304 can be pushed simultaneously by the electric push rod 1302, and the upper and lower fastening components 13 are used simultaneously so that the fastening frames 1304 with "U"-shaped structures on the upper and lower sides can be clamped on the outer sides of the first mold 4 and the second mold 5 after mold closing, and the upper and lower sides are fastened simultaneously to further improve the tightness of mold closing;

[0030] During the casting process, the interior of the four mold cavities 7 is first evacuated simultaneously through the negative pressure vacuum pump connected to the exhaust pipe 9, and then the micro valve of the exhaust nozzle 8 is closed. Then, injection molding can be performed into the interior of the mold cavity 7 through the injection molding tube 6. Four mold cavities 7 are evenly spaced on the inner side of the first mold 4 and the second mold 5, so that injection molding of four arm bodies 12 can be achieved simultaneously. After the injection molding is completed, cooling water can be injected into the water cooling chamber 10 through the water injection pipe 11 to promote the cooling and molding of the arm body 12. After molding, the first mold 4 and the second mold 5 are moved in reverse to separate them, and the molded arm body 12 is taken out. In this way, the robot arm casting mold and the use process of the robot arm are completed.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A robot arm casting mold, comprising a support base (1), a mold clamping assembly (3) and a fastening assembly (13), characterized in that: A mounting plate (2) is fixed on both the front and rear sides of the upper side of the support seat (1), and a clamping assembly (3) is installed on the inner side of the mounting plate (2), the clamping assembly (3) comprising a bidirectional screw rod (301), a movable sleeve (302) and a fixed rod (303), a bidirectional screw rod (301) is rotatably arranged on the inner side of the mounting plate (2), and two movable sleeves (302) are sleeved on the outer side of the bidirectional screw rod (301), and a fixed rod (303) is connected to one side of the movable sleeve (302), a first mold (4) is fixed to one side of the fixed rod (303) on the rear side, and a second mold (4) is fixed to one side of the fixed rod (303) on the front side (5), a fastening assembly (13) is installed on the lower side of the first mold (4) and the upper side of the second mold (5), and the fastening assembly (13) includes a fixing plate (1301), an electric push rod (1302), a connecting rod (1303) and a fastening frame (1304), the fixing plate (1301) is fixedly connected to the outer side walls of the first mold (4) and the second mold (5), respectively, and the electric push rod (1302) is installed on one side of the fixing plate (1301), the connecting rod (1303) is fixed on the other end of the electric push rod (1302), and the fastening frame (1304) is fixed on the outer side of the connecting rod (1303).

2. A robot arm casting mold according to claim 1, characterized in that: The mold clamping assembly (3) also includes a side plate (304) and a drive motor (305); the side edge of the mounting plate (2) is fixed with the side plate (304), and the rear side of the mounting plate (2) is installed with the drive motor (305); the movable sleeve (302) is slidably connected to the side plate (304).

3. A robot arm casting mold according to claim 1, characterized in that: Four mold cavities (7) are arranged at equal distances inside the first mold (4) and the second mold (5), and an injection tube (6) is connected above the mold cavity (7) inside the second mold (5).

4. A robot arm casting mold according to claim 3, characterized in that: An exhaust nozzle (8) is installed on the lower side of the mold cavity (7) inside the second mold (5), and an exhaust pipe (9) is connected to the lower side of the exhaust nozzle (8), and the exhaust pipe (9) is externally connected to a negative pressure exhaust pump.

5. The robot arm casting mold according to claim 1, characterized in that: A water cooling cavity (10) is fixed inside the second mold (5), and a water injection pipe (11) is connected to the rear side of the water cooling cavity (10). Meanwhile, an empty groove is provided inside the first mold (4) corresponding to the water cooling cavity (10).

6. The robot arm casting mold according to claim 1, characterized in that: The three fastening frames (1304) are arranged at equal distances, and the fastening frames (1304) are all in a "U"-shaped structure.

7. A robot arm, applied to a robot arm casting mold according to any one of claims 1 to 6, characterized in that: It comprises an arm body (12), wherein the arm body (12) is injection molded inside a mold cavity (7).

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