Die for rear cover of speed reducer

Abstract

The utility model relates to the technical field of dies, in particular to a speed reducer rear cover die which comprises a lower die and an upper die, two groups of inserting grooves are symmetrically formed in the top end of the lower die, two groups of inserting blocks are symmetrically arranged at the bottom end of the upper die, and cooling mechanisms are arranged on the lower die and the upper die. The cooling mechanism comprises a lower flowing cavity arranged in the lower die and an upper flowing cavity arranged in the upper die, the lower liquid inlet valve and the lower liquid outlet valve are both arranged on the lower die, the bottom end of one side wall of the upper flowing cavity is communicated with the upper liquid inlet valve, and the top end of the other side wall of the upper flowing cavity is communicated with the upper liquid outlet valve. The cooling efficiency of a speed reducer rear cover casting part is improved conveniently through the cooling mechanism, cooling water is prevented from being wasted, discharging can be facilitated through the auxiliary mechanism, the connection stability of the upper die and the lower die can be improved conveniently, disassembly and assembly are convenient and fast, the speed reducer rear cover casting efficiency is improved, and convenience is provided for use.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a reducer rear cover mold. Background Art

[0002] The reducer matches the speed and transmits the torque between the prime mover and the working machine or the actuator. The reducer is a relatively precise machine. Its purpose is to reduce the speed and increase the torque. The rear cover is one of the components of the reducer. The rear cover of the reducer is generally cast by a mold.

[0003] A Chinese patent with authorization announcement number CN207533918U discloses a reducer rear cover mold, including an upper mold, a lower mold and a bottom plate, support legs are fixedly connected to both sides of the bottom end of the bottom plate, a motor is arranged in the middle of the lower end of the bottom plate, the output end of the motor is connected to a rotating shaft, the upper end of the rotating shaft passes through the bottom plate, the top of the rotating shaft is fixedly connected to the support plate, the middle of the upper end of the support plate is arranged with a lower mold, the outer side of the lower end of the lower mold is fixedly connected with a connecting plate, a water tank is installed with a water pump, the output end of the water pump is connected to a water spray pipe, the top of the water spray pipe is connected to a nozzle, and a plurality of spray holes are evenly opened on the nozzle. The utility model has a simple structure and a reasonable design, can make the casting completed in an oxygen-free environment, improves the practicality of the mold, and can quickly cool the mold to improve the casting efficiency, and prevent the appearance of four corners through porous casting, thereby improving the quality of the workpiece.

[0004] However, the above-mentioned mold sprays water toward the upper mold and the lower mold through a water spray pipe to cool down the mold. The bottom of the lower mold is not in sufficient contact with the water, the contact rate between the cooling water and the casting is low, and the cooling effect is not good. In addition, as the upper mold and the lower mold rotate, the cooling water absorbs heat and splashes to wet the surrounding objects, which brings inconvenience to use. Utility Model Content

[0005] The utility model aims to provide a reducer rear cover mould in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is: a reducer rear cover mold, comprising a lower mold and an upper mold, the top of the lower mold is symmetrically provided with two groups of slots, the bottom of the upper mold is symmetrically provided with two groups of plug blocks, the plug blocks are adapted to the slots, and cooling mechanisms are provided on the lower mold and the upper mold;

[0007] The cooling mechanism includes a lower flow chamber arranged inside the lower mold and an upper flow chamber arranged inside the upper mold. The bottom end of one side wall of the lower flow chamber is connected to a lower liquid inlet valve, and the top end of the other side wall of the lower flow chamber is connected to a lower liquid outlet valve. The lower liquid inlet valve and the lower liquid outlet valve are both arranged on the lower mold. The bottom end of one side wall of the upper flow chamber is connected to an upper liquid inlet valve, and the top end of the other side wall of the upper flow chamber is connected to an upper liquid outlet valve.

[0008] Preferably, a plurality of groups of reinforcing ribs are installed on the inner wall of the lower flow cavity, and a plurality of groups of water holes are opened on the reinforcing ribs.

[0009] Preferably, the lower liquid inlet valve and the upper liquid inlet valve are connected to an external water supply mechanism via a water pipe, and the lower liquid outlet valve and the upper liquid outlet valve are connected to a recovery box via a water pipe. A cooling mechanism is provided in the recovery box, and the recovery box is connected to the external water supply mechanism via a water pump and a water pipe.

[0010] Preferably, an auxiliary mechanism is also provided on the lower mold, which includes a hydraulic push rod arranged in the inner cavity of the lower mold, the output end of the hydraulic push rod is connected to a push seat through a connecting rod, a storage cavity is opened at the bottom end of the middle cavity of the lower mold, the connecting rod is slidably connected to the storage cavity, and the push seat is adapted to the storage cavity.

[0011] Preferably, the material pushing seat is slidably connected to the receiving cavity, and the top end surface of the material pushing seat and the bottom end surface of the cavity are located on the same plane.

[0012] Preferably, the auxiliary mechanism also includes a moving rod, which is set to be C-shaped, connected between the hydraulic push rod and the connecting rod, slidably connected to the inner cavity of the lower mold, and the two ends of the moving rod respectively extend into corresponding slots, the end of the moving rod is hingedly connected to two groups of movable rods, the other end of the movable rod is installed with an insert rod, and a spring is connected between the two groups of movable rods.

[0013] Preferably, the insertion rod is matched with the insertion block, and a groove corresponding to the insertion rod is provided on the side wall of the insertion block; a slideway is provided between the slot and the inner cavity of the lower mold, and the moving rod is slidably connected to the slideway.

[0014] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects: the utility model facilitates the cooling water to fully contact with the casting to absorb heat and improve the cooling efficiency through the setting of the cooling mechanism, and the cooling water can be recycled and reused to avoid waste of resources; the auxiliary mechanism is set to facilitate the ejection of the cast reducer rear cover from the cavity of the lower mold for easy material removal, and the auxiliary mechanism can also improve the stability of the connection between the upper mold and the lower mold, avoid loosening during the casting process, and further improve the casting quality BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary mechanism structure of the utility model;

[0018] Figure 4 This is a schematic structural diagram of part A of the utility model.

[0019] Figure numerals: 1. lower mold; 101. lower flow cavity; 102. lower liquid inlet valve; 103. lower liquid outlet valve; 104. storage cavity; 105. slot; 106. slide; 107. reinforcing rib; 2. upper mold; 201. upper flow cavity; 202. upper liquid inlet valve; 203. upper liquid outlet valve; 204. plug block; 3. hydraulic push rod; 301. moving rod; 302. push seat; 303. movable rod; 304. spring; 305. plug rod. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] like Figure 1 As shown, the utility model proposes a reducer rear cover mold, including a lower mold 1 and an upper mold 2, the lower mold 1 is symmetrically provided with two groups of slots 105 at the top, and the upper mold 2 is symmetrically provided with two groups of plug blocks 204 at the bottom, the plug blocks 204 are adapted to the slots 105, and cooling mechanisms are provided on the lower mold 1 and the upper mold 2.

[0022] like Figures 1 to 3 As shown, the cooling mechanism includes a lower flow chamber 101 arranged inside the lower mold 1 and an upper flow chamber 201 arranged inside the upper mold 2, the bottom end of one side wall of the lower flow chamber 101 is connected to a lower liquid inlet valve 102 through a water pipe, the top end of the other side wall of the lower flow chamber 101 is connected to a lower liquid outlet valve 103 through a water pipe, the lower liquid inlet valve 102 and the lower liquid outlet valve 103 are both arranged on the lower mold 1, the bottom end of one side wall of the upper flow chamber 201 is connected to an upper liquid inlet valve 202 through a water pipe, and the top end of the other side wall of the upper flow chamber 201 is connected to an upper liquid outlet valve 203 through a water pipe.

[0023] Furthermore, a plurality of groups of reinforcing ribs 107 are installed on the inner wall of the lower flow cavity 101, and a plurality of groups of water holes are opened on the reinforcing ribs 107; the reinforcing ribs 107 are used to improve the stability of the cavity in the lower mold 1 and extend its service life, and the water holes are provided to facilitate the circulation of cooling water inside the lower flow cavity 101.

[0024] Furthermore, the lower liquid inlet valve 102 and the upper liquid inlet valve 202 are connected to an external water supply mechanism through water pipes, and the lower liquid outlet valve 103 and the upper liquid outlet valve 203 are connected to a recovery box through water pipes. A cooling mechanism is provided in the recovery box, and the recovery box is connected to the external water supply mechanism through a water pump and a water pipe.

[0025] In this embodiment, the upper mold 2 is connected to the slot 105 on the lower mold 1 through the plug block 204, and the material is injected into the lower mold 1 through the casting hole on the upper mold 2. After the reducer rear cover is formed, it is connected to the lower liquid inlet valve 102 and the upper liquid inlet valve 202 through an external water supply mechanism, and then cooling water is transported to the lower flow cavity 101 and the upper flow cavity 201. The cooling water fully contacts the shape cavity between the lower mold 1 and the upper mold 2 through the lower flow cavity 101 and the upper flow cavity 201, and then absorbs the heat of the casting. After absorbing the heat, the cooling water flows into the recovery box along the lower liquid outlet valve 103 and the upper liquid outlet valve 203 respectively, and the water is cooled by the cooling mechanism and then transported to the external water supply mechanism for recycling, so as to avoid the waste of cooling water. After the reducer rear cover casting is cooled, the upper mold 2 is separated from the lower mold 1 to take out the casting.

[0026] Embodiment 2

[0027] like Figure 2 and Figure 3 As shown, a reducer rear cover mold proposed by the utility model, compared with the first embodiment, is further provided with an auxiliary mechanism on the lower mold 1, the auxiliary mechanism includes a hydraulic push rod 3 arranged in the inner cavity of the lower mold 1, the output end of the hydraulic push rod 3 is connected to a push seat 302 through a connecting rod, a storage cavity 104 is opened at the bottom end of the shape cavity in the lower mold 1, the connecting rod is slidably connected to the storage cavity 104, and the push seat 302 is adapted to the storage cavity 104.

[0028] Furthermore, the pusher seat 302 is slidably connected to the receiving cavity 104, and the top end surface of the pusher seat 302 and the bottom end surface of the cavity are located on the same plane to avoid interfering with the casting of the casting material.

[0029] In this embodiment, the hydraulic push rod 3 is started by the controller, and the output end of the hydraulic push rod 3 drives the connecting rod to move upward along the storage cavity 104, thereby driving the push seat 302 to slide upward along the storage cavity 104, pushing the formed reducer rear cover to move upward, thereby facilitating material removal.

[0030] Embodiment 3

[0031] like Figure 3 and Figure 4As shown, the utility model proposes a reducer rear cover mold. Compared with the second embodiment, the auxiliary mechanism also includes a moving rod 301, which is set to be C-shaped, connected between the hydraulic push rod 3 and the connecting rod, and slidably connected to the inner cavity of the lower mold 1. The two ends of the moving rod 301 extend into the corresponding slots 105 respectively. The ends of the moving rod 301 are hingedly connected with two groups of movable rods 303, and the other ends of the movable rods 303 are installed with an insertion rod 305, and a spring 304 is connected between the two groups of movable rods 303. The insertion rod 305 is adapted to the insertion block 204, and the side wall of the insertion block 204 is provided with a groove corresponding to the insertion rod 305; a slideway 106 is provided between the slot 105 and the inner cavity of the lower mold 1, and the moving rod 301 is slidably connected to the slideway 106.

[0032] The cam 304 is pressed against the bottom surface of the workpiece 306 and the cam 306 is pressed against the top surface of the workpiece 306, and the cam 306 is pressed against the bottom surface of the workpiece 306.

[0033] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A reducer rear cover mold, comprising a lower mold (1) and an upper mold (2), wherein the top of the lower mold (1) is symmetrically provided with two groups of slots (105), and the bottom of the upper mold (2) is symmetrically provided with two groups of plug blocks (204), and the plug blocks (204) are adapted to the slots (105), characterized in that: The lower mold (1) and the upper mold (2) are provided with cooling mechanisms; The cooling mechanism comprises a lower flow chamber (101) arranged inside the lower mold (1) and an upper flow chamber (201) arranged inside the upper mold (2); the bottom end of one side wall of the lower flow chamber (101) is connected to a lower liquid inlet valve (102); the top end of the other side wall of the lower flow chamber (101) is connected to a lower liquid outlet valve (103); the lower liquid inlet valve (102) and the lower liquid outlet valve (103) are both arranged on the lower mold (1); the bottom end of one side wall of the upper flow chamber (201) is connected to an upper liquid inlet valve (202); and the top end of the other side wall of the upper flow chamber (201) is connected to an upper liquid outlet valve (203).

2. A reducer rear cover mold according to claim 1, characterized in that: A plurality of groups of reinforcing ribs (107) are installed on the inner wall of the lower flow chamber (101), and a plurality of groups of water holes are opened on the reinforcing ribs (107).

3. The reducer rear cover mold according to claim 1, characterized in that: The lower liquid inlet valve (102) and the upper liquid inlet valve (202) are both connected to an external water supply mechanism via a water pipe, and the lower liquid outlet valve (103) and the upper liquid outlet valve (203) are both connected to a recovery box via a water pipe. A cooling mechanism is provided in the recovery box, and the recovery box is connected to the external water supply mechanism via a water pump and a water pipe.

4. The reducer rear cover mold according to claim 1, characterized in that: The lower die (1) is also provided with an auxiliary mechanism, which comprises a hydraulic push rod (3) arranged in the inner cavity of the lower die (1); the output end of the hydraulic push rod (3) is connected to a push seat (302) via a connecting rod; a receiving cavity (104) is provided at the bottom end of the middle cavity of the lower die (1); the connecting rod is slidably connected to the receiving cavity (104); and the push seat (302) is adapted to the receiving cavity (104).

5. The reducer rear cover mold according to claim 4, characterized in that: The material pushing seat (302) is slidably connected to the receiving cavity (104), and the top end surface of the material pushing seat (302) and the bottom end surface of the cavity are located on the same plane.

6. The reducer rear cover mold according to claim 4, characterized in that: The auxiliary mechanism also includes a moving rod (301), which is set to be C-shaped. The moving rod (301) is connected between the hydraulic push rod (3) and the connecting rod. The moving rod (301) is slidably connected to the inner cavity of the lower mold (1), and the two ends of the moving rod (301) respectively extend into the corresponding slots (105). The end of the moving rod (301) is hingedly connected to two groups of movable rods (303), and the other end of the movable rod (303) is installed with an insertion rod (305), and a spring (304) is connected between the two groups of movable rods (303).

7. The reducer rear cover mold according to claim 6, characterized in that: The insertion rod (305) is matched with the insertion block (204), and a groove corresponding to the insertion rod (305) is provided on the side wall of the insertion block (204); a slideway (106) is provided between the slot (105) and the inner cavity of the lower mold (1), and the moving rod (301) is slidably connected to the slideway (106).

Images