Die-casting die for speed reducer side cover

Abstract

The utility model relates to the technical field of die-casting dies, and discloses a die-casting die for a side cover of a speed reducer, which comprises a main body frame, a fixed die set is fixedly mounted on the main body frame, a movable die set matched with the fixed die set is further arranged on the main body frame in a sliding manner, and the fixed die set and the movable die set form the die-casting die for the side cover of the speed reducer; the auxiliary assembly is arranged on the main body frame, and the auxiliary assembly can assist in demolding of the speed reducer side cover; and the linkage assembly is also arranged on the main body frame. According to the die-casting die for the speed reducer side cover, the auxiliary assembly is arranged to assist in demolding of the speed reducer side cover, adhesion between the speed reducer side cover and the fixed die or the movable die during demolding is avoided, a user can conveniently take down the formed side cover, and therefore the overall demolding step is simplified, and the overall efficiency is improved; the auxiliary assembly is composed of common mechanical parts in the market, so that the overall manufacturing cost is not high, and actual application is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a die-casting mold for a reducer side cover. Background Art

[0002] The die-casting mold is a tool for casting metal parts. The basic process includes the molten metal being filled into the mold cavity at a low or high speed. The mold has a movable cavity surface, and pressure forging is applied as the molten metal cools.

[0003] When the reducer side cover is die-cast, since multiple sets of gears and other reduction mechanisms need to be set up inside the reducer, especially for robot reduction, the shape of the reducer side cover is mostly a deep U-shape to provide sufficient cavity for the reducer. Due to actual use, when the reducer side cover is demolded after die-casting, due to the limitation of its own shape, the entire demolding step needs to be performed manually, and the actual operation steps are also cumbersome, which is not conducive to actual use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a die-casting mold for a reducer side cover, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a die-casting mold for a reducer side cover, comprising: a main frame, on which a fixed die set is fixedly installed, and on which a movable die set cooperating with the fixed die set is slidably arranged, and the fixed die set and the movable die set constitute the die-casting mold for the reducer side cover; an auxiliary component, which is arranged on the main frame and can assist in demoulding the reducer side cover; and a linkage component, which is also arranged on the main frame and can enable the position of the auxiliary component to change in real time according to the position change of the movable die set.

[0006] Preferably, the auxiliary component includes a slide seat, a movable mold slider, a fixed mold slider, an auxiliary spring, an operating rod and a cam. The slide seat is slidably set on the main frame, and the movable mold slider and the fixed mold slider are both slidably set on the slide seat. There are two auxiliary springs in total, and the two ends of one auxiliary spring are fixedly connected to the movable mold slider and the slide seat, and the two ends of the other auxiliary spring are fixedly connected to the fixed mold slider and the slide seat. The operating rod is rotatably set on the slide seat, and the cam is fixedly installed on the end face of the operating rod close to the movable mold slider, and the cam is also in contact with the movable mold slider and the fixed mold slider.

[0007] Preferably, the linkage assembly includes a screw, a transmission worm, a transmission worm wheel, a ring gear, a differential gear set, a drive gear and a T-shaped rack. The screw is rotatably arranged on the main frame and is threadedly connected to the slide seat. The transmission worm and the transmission worm wheel are both rotatably arranged inside the main frame, and the transmission worm is also threadedly connected to the transmission worm wheel. The ring gear is fixedly installed on the end face of the transmission worm wheel, the differential gear set is movably arranged inside the main frame, the drive gear is rotatably arranged inside the main frame, the T-shaped rack is fixedly installed on the movable mold group, and the T-shaped rack is also meshed with the drive gear.

[0008] Preferably, the movable mold slider cooperates with the core of the movable mold assembly, and the fixed mold slider cooperates with the cavity of the fixed mold assembly, and the fixed mold slider is also located below the movable mold slider.

[0009] Preferably, the differential gear set includes a large gear and a small gear, and the large gear is meshed with the small gear, the large gear of the differential gear set is meshed with the ring gear, the small gear of the differential gear set is fixedly connected to the screw, and the small gear of the differential gear set is concentric and coaxial with the screw.

[0010] Preferably, the central axis of the transmission worm coincides with the central axis of the driving gear, and the transmission worm is also fixedly connected to the driving gear.

[0011] Preferably, a punching rod is further provided on the main frame, a connecting plate is fixedly mounted on the end surface of the output shaft of the punching rod, and the connecting plate is fixedly connected to the movable die assembly by bolts.

[0012] Preferably, the connecting plate is provided with a pouring port for use with the movable mold assembly.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The die-casting mold of the reducer side cover is provided with an auxiliary component to assist the demolding of the reducer side cover, so as to avoid adhesion between the reducer side cover and the fixed mold or the movable mold during demolding, so as to facilitate the user to remove the molded side cover, thereby simplifying the overall demolding steps and improving the overall efficiency. In addition, the auxiliary component is composed of common mechanical parts on the market, so the overall cost is not high, which is conducive to practical adoption.

[0015] 2. The die-casting mold of the reducer side cover links the position of the auxiliary component with the position of the movable die set by setting a linkage component, so that the auxiliary component will descend as the movable die set descends, so as to improve the rationality of the operation of the overall device. The linkage component also includes a wide-pitch screw and a differential gear set to ensure the synchronization between the auxiliary component and the movable die set during displacement, thereby further improving the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the structure coordination between the fixed die set and the movable die set of the utility model;

[0018] Figure 3 This is a schematic diagram of the screw rod structure of the utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 This is a schematic diagram of the driving gear structure of the utility model.

[0021] In the figure: 1, main frame; 2, fixed die assembly; 3, movable die assembly; 4, connecting plate; 5, punch rod; 6, auxiliary assembly; 61, slide seat; 62, movable die slider; 63, fixed die slider; 64, auxiliary spring; 65, operating lever; 66, cam; 7, linkage assembly; 71, lead screw; 72, transmission worm; 73, transmission worm wheel; 74, ring gear; 75, differential gear set; 76, drive gear; 77, T-shaped rack. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 A die-casting mold for a reducer side cover comprises: a main frame 1, on which a fixed die set 2 is fixedly mounted, and a movable die set 3 cooperating with the fixed die set 2 is also slidably arranged on the main frame 1, and the fixed die set 2 and the movable die set 3 constitute a die-casting mold for the reducer side cover; a punching rod 5 is also arranged on the main frame 1, and a connecting plate 4 is fixedly mounted on the end surface of the output shaft of the punching rod 5, and the connecting plate 4 is fixedly connected to the movable die set 3 by bolts, and a pouring port used in cooperation with the movable die set 3 is opened on the connecting plate 4 to ensure the structural integrity of the overall device, thereby meeting the actual die-casting needs.

[0024] Auxiliary component 6, auxiliary component 6 is arranged on the main frame 1, and auxiliary component 6 can assist the demoulding of the reducer side cover; auxiliary component 6 includes a slide 61, a movable mold slider 62, a fixed mold slider 63, an auxiliary spring 64, an operating rod 65 and a cam 66, the slide 61 is slidably arranged on the main frame 1, the movable mold slider 62 and the fixed mold slider 63 are both slidably arranged on the slide 61, and there are two auxiliary springs 64, one of which is fixedly connected to the movable mold slider 62 and the slide 61 at both ends, and the other auxiliary spring is fixedly connected to the movable mold slider 62 and the slide 61 at both ends. Both ends of the spring 64 are fixedly connected to the fixed mold slider 63 and the slide 61, the operating rod 65 is rotatably set on the slide 61, and the cam 66 is fixedly installed on the end surface of the operating rod 65 close to the movable mold slider 62. The cam 66 is also in contact with the movable mold slider 62 and the fixed mold slider 63. The movable mold slider 62 cooperates with the core of the movable mold group 3, and the fixed mold slider 63 cooperates with the cavity of the fixed mold group 2. The fixed mold slider 63 is also located below the movable mold slider 62, which makes the demolding step of the entire reducer simpler and improves the overall efficiency.

[0025] The linkage assembly 7 is also arranged on the main frame 1, and the linkage assembly 7 can make the position of the auxiliary assembly 6 change in real time according to the position change of the movable mold assembly 3. The linkage assembly 7 includes a screw 71, a transmission worm 72, a transmission worm wheel 73, a ring gear 74, a differential gear set 75, a drive gear 76 and a T-shaped rack 77. The screw 71 is rotatably arranged on the main frame 1 and is threadedly connected to the slide 61. The transmission worm 72 and the transmission worm wheel 73 are both rotatably arranged inside the main frame 1, and the transmission worm 72 is also threadedly connected to the transmission worm wheel 73. The ring gear 74 is fixedly installed on the end surface of the transmission worm wheel 73, and the differential gear set 75 is movably arranged inside the main frame 1. The driving gear 76 is rotatably arranged inside the main frame 1, the T-shaped rack 77 is fixedly mounted on the movable mold group 3, and the T-shaped rack 77 is also meshed with the driving gear 76, the differential gear set 75 includes a large gear and a small gear, and the large gear is meshed with the small gear, the large gear of the differential gear set 75 is meshed with the ring gear 74, the small gear of the differential gear set 75 is fixedly connected to the screw rod 71, and the small gear of the differential gear set 75 is concentric and coaxial with the screw rod 71, the central axis of the transmission worm 72 coincides with the central axis of the driving gear 76, and the transmission worm 72 is also fixedly connected to the driving gear 76, ensuring that the established structure can operate stably and reasonably, thereby achieving the pre-established purpose.

[0026] Working principle: the fixed die set 2 is fixed on the main frame 1, the connecting plate 4 with a pouring port is fixedly connected to the movable die set 3, and the punching rod 5 arranged on the main frame 1 is fixedly connected to the connecting plate 4, and the movable die set 3 is in a slidable state on the main frame 1. In actual use, the punching rod 5 is started to close the movable die set 3 and the fixed die set 2, and the molten metal is poured through the connecting plate 4 and the pouring port of the movable die set 3, and then the core cavity between the movable die set 3 and the fixed die set 2 is used for shaping, thereby completing the die casting of the reducer side cover.

[0027] The slide 61 slides on the main frame 1, the movable mold slider 62 slides on the slide 61, the movable mold slider 62 cooperates with the core on the movable mold group 3, the fixed mold slider 63 also slides on the slide 61, and the fixed mold slider 63 cooperates with the cavity on the fixed mold group 2. The movable mold slider 62 and the fixed mold slider 63 are connected to the slide 61 by using an auxiliary spring 64, and the operating rod 65 rotates on the slide 61. The cam 66 contacts the movable mold slider 62 and the fixed mold slider 63 while being fixedly connected to the operating rod 65. When the fixed mold group 2 and the movable mold group 3 are die-cast, the movable mold slider 62 and the fixed mold slider 63 will cooperate with the fixed mold group 2 and the movable mold group 3 to die-cast the reducer side cover, so that after demolding, the movable mold slider 62 and the fixed mold slider 63 will limit the reducer side cover between the two. After rotating the operating rod 65, the reducer side cover can be removed after the cam 66 rotates to open the movable mold slider 62 or the fixed mold slider 63.

[0028] The wide pitch lead screw 71 rotates on the main frame 1 and is also threadedly connected to the slide 61. The transmission worm 72 and the transmission worm wheel 73 are also inside the main frame 1, and there is a threaded transmission connection relationship between the two. The ring gear 74 is fixed on the transmission worm wheel 73. The differential gear set 75 is rotatably set on the main frame 1. The ring gear 74 meshes with the large gear on the differential gear set 75, and the small gear on the differential gear set 75 is fixedly connected to the lead screw 71. The driving gear 76 also rotates inside the main frame 1. The driving gear 76 is also fixedly connected to the transmission worm 72. The T-shaped rack 77 fixed on the movable mold group 3 is slidable inside the main frame 1, and the driving gear 76 is synchronous. The movable die set 3 is meshed with the T-shaped rack 77, so when the movable die set 3 slides downward and cooperates with the fixed die set 2, under the transmission of the T-shaped rack 77, the driving gear 76, the transmission worm 72, the transmission worm wheel 73 and the differential gear set 75, the screw rod 71 rotates forward, and the slide seat 61 will drive the movable die slider 62 and the fixed die slider 63 to slide downward. When the mold is closed, the movable die set 3 cooperates with the fixed die set 2, and the movable die slider 62 and the fixed die slider 63 cooperate with the movable die set 3 and the fixed die set 2 respectively to participate in the die casting of the reducer side cover. When the mold is separated, the movable die set 3 slides upward, so that the screw rod 71 reverses, and then the movable die slider 62 and the fixed die slider 63 clamp the formed reducer side cover and slide upward, returning to the state as shown in the figure. Figure 1 The side cover is demoulded to the position shown in the figure.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A die-casting mold for a reducer side cover, characterized in that: include: A main frame (1), a fixed die set (2) being fixedly mounted on the main frame (1), and a movable die set (3) cooperating with the fixed die set (2) being slidably disposed on the main frame (1), wherein the fixed die set (2) and the movable die set (3) constitute a die-casting die for a reducer side cover; An auxiliary component (6), the auxiliary component (6) being arranged on the main frame (1), and the auxiliary component (6) being capable of assisting in demoulding the reducer side cover; A linkage component (7), wherein the linkage component (7) is also arranged on the main frame (1), and the linkage component (7) can enable the position of the auxiliary component (6) to change in real time according to the position change of the movable mold assembly (3).

2. The die-casting mold for the reducer side cover according to claim 1, characterized in that: The auxiliary component (6) comprises a slide seat (61), a movable mold slider (62), a fixed mold slider (63), an auxiliary spring (64), an operating rod (65) and a cam (66). The slide seat (61) is slidably arranged on the main frame (1). The movable mold slider (62) and the fixed mold slider (63) are both slidably arranged on the slide seat (61). There are two auxiliary springs (64), one of which has two ends fixedly connected to the movable mold slider (62) and the slide seat (61), and the other has two ends fixedly connected to the fixed mold slider (63) and the slide seat (61). The operating rod (65) is rotatably arranged on the slide seat (61). The cam (66) is fixedly installed on the end surface of the operating rod (65) close to the movable mold slider (62). The cam (66) is also in contact with the movable mold slider (62) and the fixed mold slider (63).

3. The die-casting mold for the reducer side cover according to claim 2, characterized in that: The linkage assembly (7) comprises a screw (71), a transmission worm (72), a transmission worm wheel (73), a ring gear (74), a differential gear set (75), a driving gear (76) and a T-shaped rack (77); the screw (71) is rotatably arranged on the main frame (1) and is threadedly connected to the slide seat (61); the transmission worm (72) and the transmission worm wheel (73) are both rotatably arranged inside the main frame (1), and the transmission worm (72) is also threadedly connected to the transmission worm wheel (73); the ring gear (74) is fixedly mounted on the end surface of the transmission worm wheel (73); the differential gear set (75) is movably arranged inside the main frame (1); the driving gear (76) is rotatably arranged inside the main frame (1); the T-shaped rack (77) is fixedly mounted on the movable mold assembly (3), and the T-shaped rack (77) is also meshed with the driving gear (76).

4. The die-casting mold for the reducer side cover according to claim 2, characterized in that: The movable mold slider (62) cooperates with the core of the movable mold assembly (3), and the fixed mold slider (63) cooperates with the cavity of the fixed mold assembly (2), and the fixed mold slider (63) is also located below the movable mold slider (62).

5. The die-casting mold for the reducer side cover according to claim 3, characterized in that: The differential gear set (75) comprises a large gear and a small gear, and the large gear meshes with the small gear. The large gear of the differential gear set (75) meshes with the ring gear (74), and the small gear of the differential gear set (75) is fixedly connected to the screw rod (71), and the small gear of the differential gear set (75) is concentric and coaxial with the screw rod (71).

6. The die-casting mold for the reducer side cover according to claim 3, characterized in that: The central axis of the transmission worm (72) coincides with the central axis of the driving gear (76), and the transmission worm (72) is also fixedly connected to the driving gear (76).

7. The die-casting mold for a reducer side cover according to claim 1, characterized in that: A punching rod (5) is also provided on the main frame (1), a connecting plate (4) is fixedly mounted on the end surface of the output shaft of the punching rod (5), and the connecting plate (4) is fixedly connected to the movable die assembly (3) by bolts.

8. The die-casting mold for the reducer side cover according to claim 7, characterized in that: The connecting plate (4) is provided with a pouring port for use with the movable mold assembly (3).

Images