A motor housing casting mold positioning device and positioning method thereof

Abstract

The present invention belongs to the technical field of casting mold equipment, and discloses a motor housing casting mold positioning device, including a base, a bracket is fixedly connected to the top outer wall of the base, a cylinder is fixedly connected to the top outer wall of the bracket, a connecting block is fixedly connected to the movable end of the cylinder, an upper mold is detachably mounted on the bottom outer wall of the connecting block through a mounting mechanism, a positioning assembly is provided on the outer wall of the connecting block, and a stabilizing mechanism is provided on the top outer wall of the base, and the stabilizing mechanism includes a partition. The present invention can drive the partition to move downward when the lower mold is placed on the partition by setting the coordination of structures such as partitions and clamping blocks, and drive four groups of sliders and clamping blocks to move toward the middle at the same time through connecting rods, and the clamping blocks contact the four corner side walls of the lower mold, so that a certain positioning effect can be achieved on the lower mold, so that its position roughly corresponds to the position of the upper mold, thereby facilitating more accurate positioning of the lower mold in the subsequent process.

Description

Technical Field

[0001] The invention belongs to the technical field of casting mold equipment, and in particular relates to a motor housing casting mold positioning device and a positioning method thereof. Background Art

[0002] Motor housing casting equipment is an industrial equipment system used to manufacture motor housings. This type of equipment is mainly used in high-pressure casting processes, which is the process of forming the housing by injecting molten metal or alloy into a mold. The entire equipment system usually includes core parts such as die-casting molds, injection systems, cooling systems, slag removal systems, and control systems.

[0003] The core of the motor housing casting equipment is the die-casting mold. The mold consists of a dynamic mold and a static mold, which are distributed on the upper and lower sides and are used to form the casting cavity and structure of the motor housing. The dynamic mold and the static mold need to be precisely aligned during the casting process to ensure that the size and shape of the casting meet the requirements. In some existing technologies, before closing the mold, the operator is required to manually align the position of the mold, which is more troublesome. When a different mold needs to be replaced, the mold needs to be positioned again, which reduces work efficiency and increases manpower and time costs. Therefore, it needs to be improved. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a motor housing casting mold positioning device and a positioning method thereof, which solves the problem that the prior art requires manual alignment of the mold position, which is relatively inconvenient.

[0005] To achieve the above object, the present invention provides the following technical solutions: a motor housing casting mold positioning device, comprising a base, a bracket is fixedly connected to the top outer wall of the base, a cylinder is fixedly connected to the top outer wall of the bracket, a connecting block is fixedly connected to the movable end of the cylinder, an upper mold is detachably mounted on the bottom outer wall of the connecting block through a mounting mechanism, a positioning assembly is provided on the outer wall of the connecting block, and a stabilizing mechanism is provided on the top outer wall of the base;

[0006] The stabilizing mechanism comprises a partition, the top outer wall of the partition contacts the lower mold, the top outer wall of the base is hinged with a slider via a connecting rod, the outer wall of the slider is fixedly connected with a clamping block, and the top outer wall of the base is fixedly connected with an elastic telescopic rod.

[0007] Preferably, the movable end of the elastic telescopic rod is fixedly connected to the bottom outer wall of the partition, one end of the connecting rod is hinged to the top outer wall of the base, the other end of the connecting rod is hinged to the bottom outer wall of the slider, and the slider is slidably connected to the inner wall of the partition.

[0008] Preferably, the positioning assembly includes a fixed block, the inner wall of the fixed block is elastically connected to the sliding rod through a return spring, the outer wall of the bottom end of the sliding rod is fixedly connected to the positioning block, the outer wall of the connecting block is fixedly connected to the sleeve rod, the outer wall of the sleeve rod is provided with multiple groups of slots, the inner wall of the sleeve rod is slidably connected to the fixed rod, and the inner wall of the fixed rod is elastically connected to the card block through a telescopic spring.

[0009] Preferably, one end of the return spring is fixedly connected to the inner wall of the fixed block, and the other end of the return spring is fixedly connected to the top outer wall of the sliding rod.

[0010] Preferably, one end of the telescopic spring is fixedly connected to the outer wall of the clamping block, and the other end of the telescopic spring is fixedly connected to the inner wall of the fixing rod, and the outer wall of the clamping block is slidably connected to the inner wall of the fixing rod.

[0011] Preferably, the clamping block is clamped with the clamping slot, and the fixing rod is fixedly connected with the outer wall of the fixing block.

[0012] Preferably, the mounting mechanism includes a mounting block, the inner wall of the mounting block is slidably connected to a trapezoidal block, the inner wall of the mounting block is slidably connected to a curved rod, the inner wall of the mounting block is elastically connected to a stop block via a connecting spring, the top outer wall of the upper mold is fixedly connected to a protrusion, the inner wall of the protrusion is threadedly connected to a positioning bolt, the top outer wall of the upper mold is fixedly connected to a connecting seat, and the outer wall of the connecting seat is provided with a groove.

[0013] Preferably, the mounting block is fixedly connected to the outer wall of the bottom end of the connecting block, one end of the curved rod is slidably connected to the outer wall of the trapezoidal block, and the other end of the curved rod is fixedly connected to the outer wall of the stop block.

[0014] Preferably, one end of the connecting spring is fixedly connected to the outer wall of the stop block, and the other end of the connecting spring is fixedly connected to the inner wall of the mounting block. The outer wall of the stop block is slidingly connected to the inner wall of the mounting block. The stop block is clamped in the groove, and the positioning bolt is threadedly connected to the outer wall of the mounting block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a partition plate and a clamping block, etc., so that when the lower mold is placed on the partition plate, the partition plate can be driven to move downward, and the four sets of sliders and the clamping block can be driven to move toward the middle at the same time by the connecting rod. The clamping block contacts the four corner side walls of the lower mold, which can play a certain positioning effect on the lower mold, so that its position roughly corresponds to the position of the upper mold, thereby facilitating a more accurate positioning of the lower mold in the future.

[0017] The present invention cooperates with structures such as fixed blocks and positioning blocks. During the mold closing process, when the upper mold moves downward, the inclined surfaces of the four groups of positioning blocks squeeze the lower mold, so that it continuously moves along the inclined surfaces. During the movement, the four sides of the lower mold gradually correspond to the positions of the four sides of the upper mold, and the positioning operation can be completed. After the two molds are closed, there will be no deviation that affects the casting effect. The positioning operation can be automatically completed during the mold closing process, and no operator intervention is required during the positioning process, which is more convenient.

[0018] The present invention cooperates with structures such as mounting blocks and connecting seats. When installing the upper mold, the upper mold can be initially fixed by the engagement of the block with the groove, and can be further fixed by the positioning bolts. When disassembling, the positioning bolts can be unscrewed and the trapezoidal block can be pressed to remove the upper mold. The operator can complete the disassembly and installation operations alone, and there is no need for multiple operators to cooperate in the work, thereby saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the partition of the present invention;

[0021] Figure 3 It is a schematic diagram of the support, fixed block section, and sliding rod structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the mounting block and the upper mold after being decomposed;

[0024] Figure 6 This is a schematic diagram of the cross section of the mounting block and the structure of the upper mold after decomposition of the present invention.

[0025] In the figure: 1. base; 2. stabilizing mechanism; 201. partition; 202. elastic telescopic rod; 203. connecting rod; 204. slider; 205. clamping block; 3. positioning assembly; 301. fixing block; 302. reset spring; 303. sliding rod; 304. positioning block; 305. sleeve rod; 306. telescopic spring; 307. clamping block; 308. clamping slot; 309. fixing rod; 4. upper mold; 5. lower mold; 6. bracket; 7. cylinder; 8. connecting block; 9. mounting mechanism; 901. mounting block; 902. trapezoidal block; 903. curved rod; 904. connecting spring; 905. stopper; 10. protrusion; 11. positioning bolt; 12. connecting seat; 13. groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0027] like Figures 1 to 6 As shown, the present invention provides a motor housing casting mold positioning device, including a base 1, the top outer wall of the base 1 is fixedly connected to a bracket 6, the top outer wall of the bracket 6 is fixedly connected to a cylinder 7, the movable end of the cylinder 7 is fixedly connected to a connecting block 8, the bottom outer wall of the connecting block 8 is detachably mounted with an upper mold 4 through a mounting mechanism 9, the outer wall of the connecting block 8 is provided with a positioning component 3, the top outer wall of the base 1 is provided with a stabilizing mechanism 2, the stabilizing mechanism 2 includes a partition 201, the top outer wall of the partition 201 contacts the lower mold 5, the top outer wall of the base 1 is hinged with a slider 204 through a connecting rod 203, the outer wall of the slider 204 is fixedly connected to a clamping block 205, and the top outer wall of the base 1 is fixedly connected to an elastic telescopic rod 202.

[0028] The base 1 can be placed on the ground to perform the motor housing casting operation; the upper mold 4 and the lower mold 5 are both prior art, and are the mold bodies required for the motor housing casting. Through the stabilizing mechanism 2 and the positioning component 3, the positions of the upper mold 4 and the lower mold 5 can be made corresponding during the casting process to avoid deviation in the positions of the two that affects the casting effect; the upper mold 4 can be conveniently and quickly disassembled and installed through the mounting mechanism 9, and when the cylinder 7 is started, the connecting block 8, the mounting mechanism 9, and the upper mold 4 move downward at the same time, and the upper mold 4 and the lower mold 5 are fitted together, and the casting operation can be performed. This operation is prior art.

[0029] like Figure 2 As shown, the movable end of the elastic telescopic rod 202 is fixedly connected to the bottom outer wall of the partition 201, one end of the connecting rod 203 is hinged to the top outer wall of the base 1, and the other end of the connecting rod 203 is hinged to the bottom outer wall of the slider 204, and the slider 204 is slidably connected to the inner wall of the partition 201.

[0030] Four groups of elastic telescopic rods 202 are provided, which are distributed at the four corners of the partition 201. The elastic telescopic rods 202 can support the partition 201; the sliders 204 are slidably connected to the inner walls of the through grooves opened on the partition 201, and four groups of sliders 204 are provided, corresponding to the positions of the four groups of through grooves; the partition 201 is slidably connected to the outer wall of the bracket 6, and the lower mold 5 used for the motor housing casting mold can be placed on the partition 201. After placement, the lower mold 5 presses the partition 201 downward by its own gravity, and the elastic telescopic rods 202 are forced to shrink and drive the connecting rod 203 to flip. When the connecting rod 203 flips, it drives the sliders 204 to move, so that the four groups of sliders 204 can move horizontally to the middle at the same time, driving the clamping blocks 205 to move synchronously. When the clamping blocks 205 move to contact the outer walls of the four corners of the lower mold 5, the lower mold 5 can be preliminarily positioned, so that the positions of the lower mold 5 and the upper mold 4 roughly correspond.

[0031] When the partition 201 moves downward, it will drive the four groups of clamping blocks 205 to move toward the middle. When the upper mold 4 is pressed down to fit the lower mold 5 and pressure is generated on the lower mold 5, the four groups of clamping blocks 205 have contacted the outer wall of the lower mold 5, so that the partition 201 can no longer move downward. When the mold is completed, the cylinder 7 drives the upper mold 4 to move upward and disengage from the lower mold 5, the motor housing can be taken out, and the lower mold 5 can be removed from the partition 201 for replacement as needed. After removal, the elastic telescopic rod 202 moves the partition 201 upward and resets due to its own elastic force, and the four groups of sliders 204 move outward at the same time, that is, return to the initial state. Figure 2 shown.

[0032] like Figure 3 and Figure 4 As shown, the positioning assembly 3 includes a fixed block 301, the inner wall of the fixed block 301 is elastically connected to the sliding rod 303 through a reset spring 302, the bottom outer wall of the sliding rod 303 is fixedly connected to the positioning block 304, the outer wall of the connecting block 8 is fixedly connected to the sleeve rod 305, the outer wall of the sleeve rod 305 is provided with multiple groups of slots 308, the inner wall of the sleeve rod 305 is slidably connected to the fixed rod 309, and the inner wall of the fixed rod 309 is elastically connected to the clamping block 307 through a telescopic spring 306.

[0033] The position of the fixed block 301 is adjustable. By pressing the card block 307, the card block 307 is pressed into the inner wall of the fixed rod 309, and the telescopic spring 306 is forced to shrink, and the card block 307 is out of contact with the card slot 308, and the fixed block 301 and the fixed rod 309 can be moved along the inner wall of the sleeve rod 305, so as to adjust the position of the fixed block 301 and adjust the position of the positioning block 304; when it moves to a suitable position, the card block 307 can be released, and the telescopic spring 306 drives the card block 307 to pop out due to its own elastic force, and engages with a corresponding set of card slots 308, so that the fixed rod 309 can be fixed in the sleeve rod 305, so that the position of the fixed block 301 is fixed.

[0034] like Figure 3 and Figure 4 As shown, one end of the return spring 302 is fixedly connected to the inner wall of the fixed block 301, and the other end of the return spring 302 is fixedly connected to the outer wall of the top end of the sliding rod 303; one end of the telescopic spring 306 is fixedly connected to the outer wall of the clamping block 307, and the other end of the telescopic spring 306 is fixedly connected to the inner wall of the fixed rod 309, and the outer wall of the clamping block 307 is slidably connected to the inner wall of the fixed rod 309; the clamping block 307 is clamped with the clamping groove 308, and the fixed rod 309 is fixedly connected to the outer wall of the fixed block 301.

[0035] The top of the fixed block 301 does not contact the outer wall of the bracket 6. The fixed block 301 is provided with four groups. The sliding rod 303 can move up and down in the inner wall of the fixed block 301. The positioning block 304 is trapezoidal in shape, and its inclined surface remains facing downward, with its short side facing the middle. When in use, it is necessary to adjust the position of the fixed block 301 so that the short side of the positioning block 304 is flush with the four side walls of the upper mold 4, but its position is always lower than the upper mold 4, so that it can contact the lower mold 5 one step ahead when closing the mold; when the cylinder 7 drives the upper mold 4 to move downward, the positioning assembly 3 moves downward synchronously, and the inclined surfaces of the four groups of positioning blocks 304 are all in contact with the outer wall of the lower mold 5, and squeeze the outer wall of the lower mold 5 to move the lower mold 5. At this time, the positioning block 304 will also be squeezed by the force of squeezing and move upward along the inner wall of the fixed block 301, and the movement stroke is small due to the resistance of the return spring 302, only to avoid damage caused by excessive rigid impact force on the lower mold 5.

[0036] Under the guidance of the inclined plane, the lower mold 5 gradually moves to a state of direct contact with the short sides of the four groups of positioning blocks 304. At this time, the positions of the four sides of the lower mold 5 are completely corresponding to the positions of the four sides of the upper mold 4, and the positioning operation can be completed, so that there will be no deviation between the two when the molds are closed, affecting the casting effect; and the positioning can be automatically performed during the mold closing process, without the need for operator intervention, which is more convenient; when the lower mold 5 is placed on the partition 201, the four groups of clamping blocks 205 can only play a certain fixing effect on the position of the lower mold 5, so as to prevent it from being too different from the position of the upper mold 4, and the positioning component 3 can more accurately locate its position.

[0037] like Figure 5 and Figure 6 As shown, the mounting mechanism 9 includes a mounting block 901, the inner wall of the mounting block 901 is slidably connected to a trapezoidal block 902, the inner wall of the mounting block 901 is slidably connected to a bent rod 903, the inner wall of the mounting block 901 is elastically connected to a stopper 905 via a connecting spring 904, the top outer wall of the upper mold 4 is fixedly connected to a protrusion 10, the inner wall of the protrusion 10 is threadedly connected to a positioning bolt 11, the top outer wall of the upper mold 4 is fixedly connected to a connecting seat 12, and the outer wall of the connecting seat 12 is provided with a groove 13.

[0038] The mounting block 901 is fixedly connected to the outer wall of the bottom end of the connecting block 8, one end of the bent rod 903 is slidably connected to the outer wall of the trapezoidal block 902, and the other end of the bent rod 903 is fixedly connected to the outer wall of the stop block 905; one end of the connecting spring 904 is fixedly connected to the outer wall of the stop block 905, and the other end of the connecting spring 904 is fixedly connected to the inner wall of the mounting block 901, the outer wall of the stop block 905 is slidably connected to the inner wall of the mounting block 901, the stop block 905 is clamped with the groove 13, and the positioning bolt 11 is threadedly connected to the outer wall of the mounting block 901.

[0039] The long side of the trapezoidal block 902 passes through the rear end outer wall of the mounting block 901, and the long side can be pressed to move the trapezoidal block 902 toward the inner wall of the mounting block 901; when not affected by external force, one end of the curved rod 903 remains in contact with the inclined surface of the short side of the trapezoidal block 902. When the trapezoidal block 902 is pressed, the trapezoidal block 902 moves toward the inner wall of the mounting block 901, and the two groups of curved rods 903 move along their side walls to the long sides, and move to both sides at the same time due to the extrusion force, which can drive the two groups of stoppers 905 to move to both sides; two groups of stoppers 905 and curved rods 903 are each provided and symmetrically distributed in the inner walls on both sides of the mounting block 901, and the arc surface of the stopper 905 remains facing downward.

[0040] When installing the upper mold 4, the connecting seat 12 on the upper mold 4 can be inserted into the opening below the mounting block 901. The connecting seat 12 squeezes the arc surface of the stopper 905 to make it move to both sides. The connecting spring 904 is forced to shrink. When the upper mold 4 moves to the position where the two groups of grooves 13 correspond to the stopper 905, the elastic force of the connecting spring 904 drives the stopper 905 to pop out to the middle and engage with the groove 13. The top surface of the stopper 905 contacts the top inner wall of the groove 13, and the upper mold 4 can be fixed in the mounting block 901. At this time, the threaded hole on the protrusion 10 corresponds to the position of the threaded hole on the mounting block 901, and can be further fixed by the positioning bolt 11; when the upper mold 4 needs to be replaced, the positioning bolt 11 can be removed, and the trapezoidal block 902 can be pressed to move the two sets of blocks 905 to both sides and disengage from the groove 13, so that the limit of the upper mold 4 can be released and it can be removed. During the installation and disassembly process, there is no need for one operator to hold the upper mold 4 while another operator uses bolts to fix it, which is more convenient and saves manpower.

[0041] The motor housing casting mold positioning method, steps are as follows:

[0042] S1. Place the base 1 on the ground, and place the lower mold 5 used for the motor housing casting mold on the partition 201. After placement, the lower mold 5 presses the partition 201 downward by its own gravity, and the elastic telescopic rod 202 is forced to shrink. The partition 201 drives the connecting rod 203 to flip. When the connecting rod 203 flips, it drives the slider 204 to move, so that the four groups of sliders 204 move horizontally toward the middle along the inner wall of the through groove on the partition 201 at the same time, driving the clamping block 205 to move synchronously. When the clamping block 205 moves to contact the outer walls of the four corners of the lower mold 5, it plays a preliminary positioning effect on the lower mold 5, so that the position of the lower mold 5 is roughly corresponding to that of the upper mold 4.

[0043] S2, install the upper mold 4, insert the connecting seat 12 on the upper mold 4 into the opening below the mounting block 901, the connecting seat 12 squeezes the arc surface of the stopper 905, causing it to move to both sides, and the connecting spring 904 contracts under force. When the upper mold 4 moves to the position where the two groups of grooves 13 correspond to the position of the stopper 905, the elastic force of the connecting spring 904 drives the stopper 905 to pop out to the middle and engage with the groove 13, and the top surface of the stopper 905 contacts the top inner wall of the groove 13, fixing the upper mold 4 in the mounting block 901. At this time, the threaded hole on the protrusion 10 corresponds to the position of the threaded hole on the mounting block 901, and the upper mold 4 can be further fixed by tightening the positioning bolt 11 in the threaded hole;

[0044] S3, adjust the position of the positioning block 304 in the positioning assembly 3, by pressing the card block 307, press it into the inner wall of the fixed rod 309, the telescopic spring 306 is forced to shrink, the card block 307 is out of contact with the card slot 308, the fixed block 301 and the fixed rod 309 are moved along the inner wall of the sleeve rod 305, so as to adjust the position of the fixed block 301, and then adjust the position of the positioning block 304, when the short side of the positioning block 304 is flush with the four side walls of the upper mold 4, release the card block 307, the telescopic spring 306 drives the card block 307 to pop out due to its own elastic force, and engages with a corresponding set of card slots 308, fixes the fixed rod 309 in the sleeve rod 305, and fixes the position of the positioning block 304;

[0045] S4, start the cylinder 7, the movable end of the cylinder 7 drives the connecting block 8, the mounting mechanism 9 and the upper mold 4 to move downward at the same time. During the downward movement, the positioning assembly 3 moves downward synchronously, and the inclined surfaces of the four groups of positioning blocks 304 are in contact with the outer wall of the lower mold 5, and squeeze the outer wall of the lower mold 5 to move the lower mold 5. At this time, the positioning block 304 will also be squeezed and move upward along the inner wall of the fixed block 301. Due to the small movement stroke of the resistance of the return spring 302, it is avoided that the lower mold 5 is damaged by excessive rigid impact force. Under the guidance of the inclined surface of the positioning block 304, the lower mold 5 gradually moves to a state of direct contact with the short sides of the four groups of positioning blocks 304. Since the short sides of the positioning blocks 304 are flush with the four side walls of the upper mold 4, the positions of the four sides of the lower mold 5 are also completely corresponding to the positions of the four sides of the upper mold 4, and the positioning operation can be completed, so that the two will not have deviations when the molds are closed and affect the casting effect. In addition, the positioning operation can be automatically completed during the mold closing process, and no operator intervention is required, which is more convenient.

[0046] S5. When the upper mold 4 needs to be replaced, the positioning bolt 11 can be removed first, and the trapezoidal block 902 can be pressed. The two sets of stop blocks 905 can be moved to both sides by the curved rod 903 to break contact with the groove 13. The limit of the upper mold 4 can be released and it can be removed. During the installation and disassembly of the upper mold 4, multiple operators are not required to operate at the same time, saving labor costs.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although 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 motor housing casting mold positioning device, comprising a base (1), characterized in that: The top outer wall of the base (1) is fixedly connected to a bracket (6), the top outer wall of the bracket (6) is fixedly connected to a cylinder (7), the movable end of the cylinder (7) is fixedly connected to a connecting block (8), the bottom outer wall of the connecting block (8) is detachably mounted with an upper mold (4) via a mounting mechanism (9), the outer wall of the connecting block (8) is provided with a positioning assembly (3), and the top outer wall of the base (1) is provided with a stabilizing mechanism (2); The stabilizing mechanism (2) comprises a partition (201), the top outer wall of the partition (201) contacts the lower mold (5), the top outer wall of the base (1) is hinged with a slider (204) via a connecting rod (203), the slider (204) is provided in four groups, the outer wall of each group of sliders (204) is fixedly connected to a clamping block (205), the top outer wall of the base (1) is fixedly connected to an elastic telescopic rod (202), and the mounting mechanism (9) comprises a mounting block (901), the inner wall of the mounting block (901) is The wall is slidably connected to a trapezoidal block (902), the inner wall of the mounting block (901) is slidably connected to a bent rod (903), the inner wall of the mounting block (901) is elastically connected to a stopper (905) via a connecting spring (904), the top outer wall of the upper mold (4) is fixedly connected to a protrusion (10), the inner wall of the protrusion (10) is threadedly connected to a positioning bolt (11), the top outer wall of the upper mold (4) is fixedly connected to a connecting seat (12), and the outer wall of the connecting seat (12) is provided with a groove (13); The positioning assembly (3) comprises a fixed block (301), the inner wall of the fixed block (301) being elastically connected to a sliding rod (303) via a return spring (302), the outer wall of the bottom end of the sliding rod (303) being fixedly connected to a positioning block (304), four groups of positioning blocks (304) being provided, the outer wall of the connecting block (8) being fixedly connected to a sleeve rod (305), the outer wall of the sleeve rod (305) being provided with a plurality of groups of slots (308), the inner wall of the sleeve rod (305) being slidingly connected to the inner wall of the sleeve rod (305) A fixing rod (309) is connected, and the inner wall of the fixing rod (309) is elastically connected to a clamping block (307) via a telescopic spring (306). The positioning block (304) is trapezoidal in shape, and its inclined surface is kept facing downward, and its short side faces the middle. When in use, the position of the fixing block (301) needs to be adjusted so that the short side of the positioning block (304) is flush with the four side walls of the upper mold (4), but its position is always lower than the upper mold (4), so that it can contact the lower mold (5) first when the mold is closed; The mounting block (901) is fixedly connected to the outer wall of the bottom end of the connecting block (8), one end of the curved rod (903) is slidably connected to the outer wall of the trapezoidal block (902), and the other end of the curved rod (903) is fixedly connected to the outer wall of the stopper (905); One end of the connection spring (904) is fixedly connected to the outer wall of the stopper (905), and the other end of the connection spring (904) is fixedly connected to the inner wall of the mounting block (901). The outer wall of the stopper (905) is slidably connected to the inner wall of the mounting block (901). The stopper (905) is snap-fitted to the groove (13), and the positioning bolt (11) is threadedly connected to the outer wall of the mounting block (901).

2. The motor housing casting mold positioning device according to claim 1, characterized in that: The movable end of the elastic telescopic rod (202) is fixedly connected to the outer wall of the bottom end of the partition (201), one end of the connecting rod (203) is hinged to the outer wall of the top end of the base (1), the other end of the connecting rod (203) is hinged to the outer wall of the bottom end of the slider (204), and the slider (204) is slidably connected to the inner wall of the partition (201).

3. The motor housing casting mold positioning device according to claim 1, characterized in that: One end of the return spring (302) is fixedly connected to the inner wall of the fixed block (301), and the other end of the return spring (302) is fixedly connected to the outer wall of the top end of the sliding rod (303).

4. The motor housing casting mold positioning device according to claim 1, characterized in that: One end of the telescopic spring (306) is fixedly connected to the outer wall of the clamping block (307), and the other end of the telescopic spring (306) is fixedly connected to the inner wall of the fixing rod (309). The outer wall of the clamping block (307) is slidably connected to the inner wall of the fixing rod (309).

5. The motor housing casting mold positioning device according to claim 1, characterized in that: The clamping block (307) is clamped with the clamping slot (308), and the fixing rod (309) is fixedly connected to the outer wall of the fixing block (301).

6. A method for positioning a motor housing casting mold, applied to the motor housing casting mold positioning device as claimed in any one of claims 1 to 5, characterized in that: The steps include: S1. Place the base (1) on the ground, and place the lower mold (5) used for the motor housing casting mold on the partition (201). After placement, the lower mold (5) presses the partition (201) downward due to its own weight, and the elastic telescopic rod (202) contracts under the force, so that the partition (201) drives the connecting rod (203) to flip, and the connecting rod (203) drives the slider (204) to move when flipping, so that the four groups of sliders (204) move horizontally toward the middle along the inner wall of the through groove on the partition (201) at the same time, driving the clamping block (205) to move synchronously. When the clamping block (205) moves to contact the outer walls of the four corners of the lower mold (5), it has a preliminary positioning effect on the lower mold (5), so that the position of the lower mold (5) corresponds to that of the upper mold (4); S2. Install the upper mold (4). Insert the connecting seat (12) on the upper mold (4) into the opening below the mounting block (901). The connecting seat (12) squeezes the arc surface of the stopper (905) to move it to both sides. The connecting spring (904) contracts under force. When the upper mold (4) moves to the position where the two sets of grooves (13) correspond to the position of the stopper (905), the elastic force of the connecting spring (904) drives the stopper (905) to pop out toward the middle and engage with the groove (13). The top straight surface of the stopper (905) contacts the top inner wall of the groove (13), and the upper mold (4) is fixed in the mounting block (901). At this time, the threaded hole on the protrusion (10) corresponds to the position of the threaded hole on the mounting block (901). The upper mold (4) can be further fixed by tightening the positioning bolt (11) in the threaded hole. S3, adjusting the position of the positioning block (304) in the positioning assembly (3), by pressing the clamping block (307) to press it into the inner wall of the fixed rod (309), the telescopic spring (306) is forced to shrink, the clamping block (307) is disengaged from the clamping slot (308), the fixed block (301) and the fixed rod (309) are moved along the inner wall of the sleeve rod (305), thereby adjusting the position of the fixed block (301), and then adjusting the position of the positioning block (304), when the short side of the positioning block (304) is flush with the four side walls of the upper mold (4), the clamping block (307) is released, the telescopic spring (306) drives the clamping block (307) to pop out due to its own elastic force, and clamps with a corresponding set of clamping slots (308), fixes the fixed rod (309) in the sleeve rod (305), and fixes the position of the positioning block (304); S4, start the cylinder (7), the movable end of the cylinder (7) drives the connecting block (8), the mounting mechanism (9) and the upper mold (4) to move downward at the same time. During the downward movement, the positioning assembly (3) moves downward synchronously, the inclined surfaces of the four groups of positioning blocks (304) are in contact with the outer wall of the lower mold (5), and the outer wall of the lower mold (5) is squeezed to move the lower mold (5). At this time, the positioning block (304) is also squeezed and moves upward along the inner wall of the fixed block (301). Due to the small movement stroke of the resistance of the return spring (302), it is avoided to contact with the lower mold (5). ) generates an excessive rigid impact force causing damage. Under the guidance of the inclined surface of the positioning block (304), the lower mold (5) gradually moves to a state of direct contact with the short sides of the four groups of positioning blocks (304). Since the short sides of the positioning blocks (304) are flush with the four side walls of the upper mold (4), the positions of the four sides of the lower mold (5) are also completely corresponding to the positions of the four sides of the upper mold (4), and the positioning operation can be completed, so that there will be no deviation between the two when the mold is closed, affecting the casting effect. In addition, the positioning operation can be automatically completed during the mold closing process, without the need for an operator to intervene and operate, which is more convenient. S5. When the upper mold (4) needs to be replaced, the positioning bolt (11) can be removed first, and the trapezoidal block (902) can be pressed to drive the two sets of stoppers (905) to move to both sides through the curved rod (903) to break contact with the groove (13), so that the upper mold (4) can be released from the limit and removed. In the process of installing and removing the upper mold (4), multiple operators are not required to operate at the same time, saving labor costs.

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