Motor end cover welding positioning device

Abstract

The utility model relates to a motor end cover welding positioning device which comprises a positioning mechanism, the positioning mechanism comprises a supporting seat, a positioning mold and a positioning rod, the supporting seat is vertically arranged on the ground, a positioning groove is formed in the end, away from the ground, of the supporting seat, the positioning mold is installed in the positioning groove, a through hole is formed in the center of the positioning mold, and the positioning rod is installed in the through hole. The positioning rod is inserted into the through hole and abuts against the bottom of the positioning groove, the end, away from the positioning groove, of the positioning rod extends out of the through hole, an avoiding groove is formed in the end, away from the positioning groove, of the positioning mold, the positioning rod is sleeved with a positioning block, and the positioning block abuts against the inner wall of the through hole in the circumferential direction. The end, away from the supporting seat, of the positioning block abuts against the side, facing the supporting seat, of the mounting plate, the positioning rod extends out of the through hole to abut against the inner wall of the via hole, and the outer diameter, away from the supporting seat, of the positioning block abuts against the side, away from the side plate, of the ratchet.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor end cover welding positioning device. Background Art

[0002] In the process of enriching material civilization, motors are widely used in various fields. If the motors want to have good performance, they need to be installed with a casing for fixing and protection. The casing includes two end covers and a hollow casing. The end covers and the casing are assembled to cover the motor.

[0003] The end cap 1 in the prior art, referring to Figure 1 , including a mounting plate 101 and a casing 102, the mounting plate 101 is provided with a through hole 2 and an assembly hole 3, the through hole 2 is provided along the center of the mounting plate 101; the casing 102 is horizontally arranged, the center of the casing 102 is provided with a mounting hole 4, the casing 102 is vertically connected with a plurality of ratchets 5 in the circumferential direction of the mounting hole 4, the casing 102 is circumferentially connected with a side plate 6 facing away from the ratchets 5, the side plate 6 and the ratchets 5 form a mounting groove 7, and a notch 8 is provided at one end of the side plate 6 away from the mounting plate 101; the casing 102 and the mounting plate 101 are both placed on the positioning device for positioning, and then the casing 102 and the mounting plate 101 are fixed to each other by electric welding.

[0004] The positioning device in the prior art, referring to Figure 1 , including a positioning mechanism 9, the positioning mechanism 9 including a support seat 91, a positioning mold 92 and a positioning rod 93, the support seat 91 is vertically arranged on the ground, the support seat 91 is provided with a positioning groove 10 at one end away from the ground, the positioning mold 92 is installed in the positioning groove 10, the positioning mold 92 is provided with a through hole 11 at the center, the positioning rod 93 is inserted into the through hole 11 and abuts against the bottom of the positioning groove 10, the positioning rod 93 extends out of the through hole 11 at one end away from the positioning groove 10, and the positioning mold 92 is away from the positioning groove 10. An avoidance groove 12 is opened at one end of the groove 10; the casing 102 is placed on the side of the positioning mold 92 away from the support seat 91, so that the inner wall of the side plate 6 abuts against the outer wall of the positioning mold 92, the ratchet 5 is placed in the avoidance groove 12, and the outer wall of the ratchet 5 abuts against the inner wall of the avoidance groove 12, and the mounting plate 101 is placed on the casing 102 on the side away from the positioning mold 92, so that the casing 102 is sleeved on the positioning rod 93 through the through hole 2 and extends out of one end of the positioning mold 92, and then the casing 102 and the mounting plate 101 are fixed to each other by electric welding.

[0005] Due to the gap between the positioning rod and the inner wall of the through hole on the positioning mold, the positioning rod is easily moved in the positioning mold during the welding process of the mounting plate and the casing, thereby driving the mounting plate to move, resulting in reduced concentricity between the shell and the mounting plate, and further producing defective products that affect product quality. Utility Model Content

[0006] In order to improve the concentricity between the mounting plate and the housing during the welding process, the present application provides a motor end cover welding positioning device.

[0007] The present application provides a motor end cover welding positioning device adopts the following technical solution:

[0008] A motor end cover welding positioning device comprises a positioning mechanism, which comprises a support seat, a positioning mold and a positioning rod, wherein the support seat is vertically arranged on the ground, a positioning groove is provided at one end of the support seat facing away from the ground, the positioning mold is installed in the positioning groove, a through hole is provided in the center of the positioning mold, the positioning rod is inserted in the through hole and abuts the bottom of the positioning groove, one end of the positioning rod facing away from the positioning groove extends out of the through hole, an avoidance groove is provided at one end of the positioning mold facing away from the positioning groove, a positioning block is provided on the outer sleeve of the positioning rod, the positioning block is fixedly installed on the positioning rod, the positioning block circumferentially abuts against the inner wall of the through hole, the end of the positioning block facing away from the support seat abuts against the side of the mounting plate toward the support seat, the position rod protruding from the through hole abuts against the inner wall of the through hole, and the outer diameter of the positioning block away from the support seat abuts against the side of the ratchet facing away from the side plate.

[0009] By adopting the above technical solution, the setting of the positioning block can fill the gap between the positioning rod and the positioning mold, thereby reducing the probability of the positioning rod slipping in the positioning mold, reducing the probability of the positioning rod slipping and causing the mounting plate to slip, improving the concentricity of the mounting plate and the casing during welding, and reducing the probability of defective products.

[0010] Preferably, the positioning mold is provided with a circular hole corresponding to the assembly hole, and a limiting rod is installed between the assembly hole and the circular hole.

[0011] By adopting the above technical solution, after the positioning rod positions the casing and the mounting plate, the limiting rod is used to fix the mounting plate, and when there are position requirements for the fixing plate and the casing, the probability of the positioning plate rotating during welding is reduced.

[0012] Preferably, the end of the positioning rod facing away from the ratchet is connected to a cylinder, and the cylinder is fixedly mounted on the positioning rod.

[0013] By adopting the above technical solution, a cylinder is connected to the end of the positioning rod facing away from the ratchet. When the positioning rod extends out of the through hole at one end to position the mounting plate and the casing for a long time and wear and other factors affecting the positioning occur, the cylinder can be taken out of the through hole and made to abut the through hole to position the mounting plate, thereby improving the utilization efficiency of the positioning rod.

[0014] Preferably, both ends of the positioning block in the length direction are circumferentially provided with rounded corners.

[0015] By adopting the above technical solution, the rounded corners make the contact between the positioning block, the ratchet and the mounting plate smooth without sharp edges, while reducing the damage caused by the sharp edges to the workers and the end cover during the installation process.

[0016] Preferably, both ends of the positioning die in the length direction are circumferentially provided with rounded corners.

[0017] By adopting the above technical solution, rounded corners are set at both ends of the positioning mold in the length direction so that the sharp edges of the positioning mold in contact with the housing are changed into smooth arc surfaces, thereby reducing scratches caused by the contact between the positioning mold and the housing.

[0018] Preferably, the side wall of the positioning groove is provided with a plurality of springs, the plurality of springs are horizontally installed in the positioning groove, one end of the plurality of springs are installed on the inner wall of the positioning groove, and the end of the plurality of springs facing away from the inner wall of the positioning groove is connected with a baffle, and the baffle abuts against the positioning mold.

[0019] By adopting the above technical solution, when positioning end caps of different sizes, different positioning molds are selected according to the different sizes of the end caps, and the spring abuts against the positioning mold through the baffle to fix the positioning mold, thereby improving the applicability of the positioning device.

[0020] Preferably, the baffle is connected to an inclined plate, the inclined plate is installed at an end of the baffle away from the positioning groove, and the inclined plate is inclined toward an inner wall away from the positioning groove.

[0021] By adopting the above technical solution, the positioning mold squeezes the inclined plate during installation, and the inclined plate squeezes the spring so that the spring is compressed and the positioning mold moves toward the bottom of the positioning groove. After the positioning mold abuts against the bottom of the positioning groove, the positioning mold is fixed by the baffle plate. By squeezing the inclined plate instead of directly squeezing the spring during installation, the replacement and fixation of the positioning mold can be completed quickly.

[0022] Preferably, two insertion rods are slidably mounted on the support seat, the two insertion rods are vertically mounted on the support seat, and one end of the two insertion rods away from the support seat abuts against the length direction of the notch.

[0023] By adopting the above technical solution, the sliding of the casing is further limited by the insertion rod abutting the notch, thereby reducing the impact of the sliding of the casing on the welding process.

[0024] Preferably, the end of the insertion rod away from the notch is connected with a support rod, the support rod is horizontally arranged in a direction away from the positioning mold, a sliding ring is installed on the support seat, and the support rod sliding sleeve is arranged on the sliding ring.

[0025] By adopting the above technical solution, the sliding movement of the support rod makes the insertion rod suitable for gaps of different sizes, thereby improving the applicability of the positioning device.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The setting of the positioning block can fill the gap between the positioning rod and the positioning die, thereby reducing the probability of the positioning rod slipping in the positioning die, reducing the probability of the positioning rod sliding and driving the mounting plate to slip, improving the concentricity of the mounting plate and the housing during welding, and reducing the probability of defective products;

[0028] 2. When positioning end caps of different sizes, different positioning dies are selected according to the sizes of the end caps. The spring abuts against the positioning die through the baffle so that the positioning die is fixed, thereby improving the applicability of the positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional structural schematic diagram of the prior art.

[0030] Figure 2 It is a schematic diagram of the end cover structure.

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of Example 1.

[0032] Figure 4 It is a schematic diagram of the cross-sectional structure of Example 2.

[0033] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0034] Figure 6 It is a schematic diagram of the explosion structure of Example 2.

[0035] Explanation of the reference numerals: 1. end cover; 101. mounting plate; 102. housing; 2. through hole; 3. assembly hole; 4. mounting hole; 5. ratchet; 6. side panel; 7. mounting groove; 8. notch; 9. positioning mechanism; 91. support seat; 92. positioning die; 93. positioning rod; 10. positioning groove; 11. through hole; 12. avoidance groove; 13. positioning block; 14. round hole; 15. limit rod; 16. cylinder; 17. fillet; 18. spring; 19. baffle; 20. inclined plate; 21. plug rod; 22. support rod; 23. sliding ring; 24. groove. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a welding positioning device for a motor end cover.

[0038] Embodiment 1:

[0039] Reference Figure 1 , Figure 2 and Figure 3A motor end cover welding positioning device includes a positioning mechanism 9, which includes a support seat 91, a positioning mold 92 and a positioning rod 93. The support seat 91 is vertically arranged on the ground, and a positioning groove 10 is provided at one end of the support seat 91 away from the ground, and the positioning groove 10 is used to install the positioning mold 92; the outer wall of the positioning mold 92 abuts against the inner wall of the positioning groove 10, and the end of the positioning mold 92 facing the bottom of the positioning groove 10 abuts against the bottom of the positioning groove 10, and the end of the positioning mold 92 away from the bottom of the positioning groove 10 abuts against the side of the housing 102 away from the mounting plate 101, and the outer wall of the positioning mold 92 abuts against the inner wall of the side plate 6; the end of the positioning mold 92 away from the positioning groove 10 is provided with an avoidance groove 12, and the ratchet 5 is placed in the positioning groove 10. The through hole 11 is formed in the center of the positioning mold 92, and the positioning rod 93 is installed in the through hole 11. The positioning rod 93 passes through the through hole 11 and the outer wall of the positioning rod 93 abuts against the inner wall of the through hole 11, and one end of the positioning rod 93 abuts against the bottom of the positioning groove 10. The positioning rod 93 extends out of the through hole 11 at one end away from the bottom of the positioning groove 10. The positioning rod 93 extends out of the through hole 11 and abuts against the inner wall of the through hole 2 to position the mounting plate 101. A positioning block 13 is provided on the outer sleeve of the positioning rod 93, and the outer wall of the positioning block 13 abuts against the inner wall of the through hole 11. The positioning block 13 abuts against the ratchet 5 toward the outer wall of the end of the positioning rod 93 extending out of the through hole 11, and the positioning block 13 abuts against the ratchet 5 to fix the housing 102.

[0040] Reference Figure 3 A circular hole 14 is opened at one end of the positioning mold 92 facing the end cover 1, and a limiting rod 15 is installed between the circular hole 14 and the assembly hole 3. The limiting rod 15 connects and fixes the mounting plate 101 and the positioning mold 92 to reduce the slippage of the mounting plate 101 during welding.

[0041] Reference Figure 3 The positioning mold 92 is provided with fillets 17 in the circumferential direction of the length direction. The fillets 17 make it convenient for the positioning mold 92 to be installed toward the positioning groove 10. The positioning mold 92 is installed in the mounting groove 7 to abut against the inner wall of the side plate 6 and the side of the casing 102 away from the mounting plate 101 to reduce the damage caused by the abutment between the positioning mold 92 and the casing 102; the positioning block 13 is provided with fillets 17 in the circumferential direction of the length direction. The fillets 17 make the abutment with the casing 102 a rounded surface to reduce the damage caused by the abutment between the positioning block 13 and the casing 102.

[0042] The implementation principle of Example 1 is as follows: before welding the housing 102 and the mounting plate 101, check whether the sizes of the assembly holes 3 and the through holes 2 opened on the mounting plate 101 are qualified, and whether all the mounting plates 101 to be welded are provided with assembly holes 3 and through holes 2; check whether all the mounting holes 4 are opened on the housing 102, whether the ratchet teeth 5 installed circumferentially along the mounting holes 4 are firm, and whether the connection between the side plate 6 and the housing 102 is firm; after the above confirmation is completed; install the positioning mold 92 in the positioning groove 10, and make the positioning mold 92 facing the positioning groove 10 abut against the bottom of the positioning groove 10, install the positioning rod 93 in the through hole 11, and confirm that the positioning block The outer wall of 13 abuts against the inner wall of the through hole 11; install the housing 102 on the positioning mold 92 and make the positioning rod 93 pass through the mounting hole 4 at one end away from the bottom of the positioning groove 10, pass the through hole 2 opened on the mounting plate 101 through the positioning rod 93, align the assembly hole 3 with the circular hole 14 and install the limiting rod 15, and then weld the housing 102 and the mounting plate 101; when the positioning device is used for a long time, check whether the end of the positioning rod 93 extending out of the through hole 2 is worn to see if it affects welding. If it affects welding, remove the positioning rod 93 from the through hole 11 to make the cylinder 16 away from the bottom of the positioning groove 10, and install the housing 102 and the mounting plate 101 for welding.

[0043] Embodiment 2:

[0044] Example 2 is based on Example 1, in which a spring 18 is added to the inner wall of the positioning groove 10 and two insertion rods 21 are installed on the outer wall of the positioning mold 92. Figure 4 , Figure 5 and Figure 6 The inner wall of the positioning groove 10 is provided with a plurality of grooves 24, and the spring 18 is horizontally installed in the groove 24. The end of the spring 18 facing the groove 24 is fixedly connected to the bottom of the groove 24, and the end of the spring 18 away from the bottom of the groove 24 is connected to a baffle 19, and the baffle 19 is vertically arranged along the height direction of the positioning groove 10. The end of the baffle 19 away from the bottom of the positioning groove 10 is connected to an inclined plate 20, and the inclined plate 20 is inclined away from the inner wall of the positioning groove 10. When the outer size of the housing 102 to be welded changes, the positioning mold 92 is changed with the size of the housing 102, and the positioning mold 92 is taken out from the positioning groove 10, and a new positioning mold 92 is installed to make the positioning The mold 92 squeezes the inclined plate 20, and the inclined plate 20 transfers the force to the baffle 19. The baffle 19 squeezes the spring 18 and compresses it toward the bottom of the groove 24. When the positioning mold 92 is installed to the bottom of the positioning groove 10, the baffle 19 abuts against the positioning mold 92 under the elastic force of the spring 18 to fix the positioning mold 92 in the positioning groove 10; the insertion rod 21 is installed in the circumference of the positioning mold 92, and a sliding groove is arranged on the circumference of the outer wall of the positioning mold 92. A sliding ring 23 is installed in the sliding groove. The insertion rod 21 is sleeved on the sliding ring 23, corresponding to the notch 8 opened on the casing 102. The insertion rod 21 abuts against the notch 8 in the length direction to fix the casing 102 to reduce slippage during welding.

[0045] The implementation principle of Example 2 is as follows: for shells of different sizes that need to be welded by the positioning device, a positioning mold 92 and a positioning rod 93 that match the shell size are prepared according to the shell size. Before welding the shell 102 and the mounting plate 101, check whether the sizes of the assembly holes 3 and the through holes 2 opened on the mounting plate 101 are qualified, and whether the mounting plates 101 that need to be welded are all provided with assembly holes 3 and through holes 2; check whether all the mounting holes 4 are opened on the shell 102, whether the ratchet teeth 5 installed circumferentially along the mounting holes 4 are firm, and whether the connection between the side plate 6 and the shell 102 is firm; after the above confirmation is completed; install the positioning mold 92 in the positioning groove 10, and make the positioning mold 92 abut against the bottom of the positioning groove 10 at one end facing the positioning groove 10. During the process of installing the positioning mold 92 into the positioning groove 10, the baffle 19 abuts against the positioning mold 92 under the elastic force of the spring 18 and fixes the positioning mold 92; install the positioning rod 93 in the through hole 11, and confirm the positioning The outer wall of block 13 abuts the inner wall of through hole 11; install housing 102 on positioning die 92 and make the positioning rod 93 pass through the mounting hole 4 away from the bottom end of positioning groove 10, pass the positioning rod 93 through the through hole 2 opened on mounting plate 101, align the assembly hole 3 with the circular hole 14 and install the limiting rod 15, and then weld housing 102 and mounting plate 101; after the positioning device has been used for a long time, check whether the end of positioning rod 93 extending through hole 2 is worn to affect welding. If it affects welding, remove positioning rod 93 from through hole 11 so that cylinder 16 is away from the bottom of positioning groove 10, install housing 102 and mounting plate 101 for welding, slide the insertion rod 21 to a position matching the length of notch 8 and abut against both ends of notch 8 in the length direction, and weld after fixing; when positioning die 92 needs to be replaced, remove positioning die 92 from positioning groove 10, replace positioning die 92 matching the size of welding housing 102 for welding.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A motor end cover welding positioning device, comprising a positioning mechanism (9), the positioning mechanism (9) comprising a support seat (91), a positioning die (92) and a positioning rod (93), the support seat (91) being vertically arranged on the ground, a positioning groove (10) being provided at one end of the support seat (91) facing away from the ground, the positioning die (92) being installed in the positioning groove (10), a through hole (11) being provided at the center of the positioning die (92), the positioning rod (93) being inserted in the through hole (11) and abutting against the bottom of the positioning groove (10), an end of the positioning rod (93) facing away from the positioning groove (10) extending out of the through hole (11), and an avoidance groove (12) being provided at one end of the positioning die (92) facing away from the positioning groove (10), characterized in that: The outer sleeve of the positioning rod (93) is provided with a positioning block (13), and the positioning block (13) is fixedly mounted on the positioning rod (93). The positioning block (13) circumferentially abuts against the inner wall of the through hole (11), and one end of the positioning block (13) facing away from the support seat (91) abuts against the side of the mounting plate (101) facing the support seat (91). The positioning rod (93) protrudes from the through hole (11) and abuts against the inner wall of the through hole (2), and the outer diameter of the positioning block (13) away from the support seat (91) abuts against the side of the ratchet (5) facing away from the side plate (6).

2. A motor end cover welding positioning device according to claim 1, characterized in that: The positioning die (92) is provided with a circular hole (14) corresponding to the assembly hole (3), and a limiting rod (15) is installed between the assembly hole (3) and the circular hole (14).

3. A motor end cover welding positioning device according to claim 2, characterized in that: One end of the positioning rod (93) facing away from the ratchet (5) is connected to a cylinder (16), and the cylinder (16) is fixedly mounted on the positioning rod (93).

4. A motor end cover welding positioning device according to claim 3, characterized in that: Rounded corners (17) are provided at both ends of the positioning block (13) in the length direction.

5. A motor end cover welding positioning device according to claim 4, characterized in that: Rounded corners (17) are provided at both ends of the positioning mold (92) in the length direction.

6. A motor end cover welding positioning device according to claim 5, characterized in that: A plurality of springs (18) are arranged on the side wall of the positioning groove (10), the plurality of springs (18) are horizontally mounted in the positioning groove (10), one end of the plurality of springs (18) are mounted on the inner wall of the positioning groove (10), and one end of the plurality of springs (18) facing away from the inner wall of the positioning groove (10) is connected to a baffle (19), and the baffle (19) abuts against the positioning mold (92).

7. A motor end cover welding positioning device according to claim 6, characterized in that: The baffle plate (19) is connected to an inclined plate (20), and the inclined plate (20) is installed at an end of the baffle plate (19) away from the positioning groove (10), and the inclined plate (20) is inclined towards the inner wall away from the positioning groove (10).

8. The motor end cover welding positioning device according to claim 7, characterized in that: Two insertion rods (21) are slidably mounted on the support seat (91), the two insertion rods (21) are vertically mounted on the support seat (91), and one end of the two insertion rods (21) away from the support seat (91) abuts against the notch (8) in the length direction.

9. The motor end cover welding positioning device according to claim 8, characterized in that: The end of the insertion rod (21) away from the notch (8) is connected to a support rod (22), the support rod (22) is arranged horizontally in a direction away from the positioning mold (92), a sliding ring (23) is installed on the support seat (91), and the support rod (22) is slidingly sleeved on the sliding ring (23).

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