Auxiliary tooling for motor brake block assembly

Abstract

The utility model belongs to the technical field of motor assembly, and in particular, relates to an auxiliary tooling for motor brake block assembly. An auxiliary tooling for motor brake block assembly, characterized in that it includes a positioning block, the bottom of the positioning block is provided with a contact surface for contacting the end face of the motor housing, a first positioning groove extending axially and used to accommodate the brake block is provided between the bottom and the top of the positioning block, the first positioning groove is provided with a lateral opening, and a magnetic suction piece is provided on the top of the positioning block, and the magnetic suction piece is used to adsorb the brake block in the first positioning groove. The utility model has the advantage of assisting the axial positioning of the motor brake block when it is installed.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor assembly, and in particular relates to an auxiliary tooling for assembling a motor brake block. Background Art

[0002] After the motor is powered off, the shaft will usually continue to rotate for a while due to inertia before stopping. The electromagnetic friction brake device is applied to the motor to quickly brake the shaft in the motor to prevent the shaft from continuing to rotate after the motor is powered off. The principle of the electromagnetic friction brake device is as follows: when the excitation coil is energized, a magnetic field is generated and the brake pad is attracted. The brake pad does not contact the brake block on the shaft, and the brake pad does not brake the shaft at this time; when the excitation coil is powered off, the brake pad contacts the brake block on the shaft under the action of the reset spring, and the brake pad brakes the shaft at this time.

[0003] When the brake block is fixed to the motor shaft, the axial position of the brake block on the shaft needs to be determined. If the axial position of the brake block on the shaft is too high, the axial spacing between the brake block and the brake pad may be too small, causing friction between the brake block and the brake pad even when the motor is powered on, causing abnormal noise from the motor; if the axial position of the brake block on the shaft is too low, the axial spacing between the brake block and the brake pad may be too large, and when the motor is powered off, the brake block and the brake pad are difficult to contact or poorly contacted, resulting in poor braking effect when the motor is powered off. Utility Model Content

[0004] The utility model aims to provide an auxiliary tool for assembling a motor brake block, which can assist in positioning the axial position of the motor brake block when the motor brake block is installed.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: an auxiliary tooling for assembling a motor brake block, characterized in that: it includes a positioning block, the bottom of the positioning block is provided with a contact surface for contacting the end face of the motor housing, and a first positioning groove extending axially and used to accommodate the brake block is provided between the bottom and the top of the positioning block, the first positioning groove is arranged with a lateral opening, and a magnetic suction part is provided on the top of the positioning block, and the magnetic suction part is used to adsorb the brake block in the first positioning groove.

[0006] When in use, first put the brake block on the motor shaft, then place the tooling on the axial end face of the motor housing so that the contact surface contacts the axial end face of the motor housing to ensure that the tooling is set horizontally. At the same time, fine-tune the position of the tooling so that the brake block is located in the first positioning groove. The first positioning groove positions the circumferential position of the brake block, and the magnetic suction piece sucks up the brake block. At this time, the axial position of the brake block is determined, and then the operator screws the screws on the brake block to fix the brake block to the motor shaft.

[0007] This solution ensures that the tooling is set horizontally by making the contact surface contact with the axial end face of the motor, and at the same time, the brake block is sucked up by the magnetic suction part to determine the axial position of the brake block on the rotating shaft. The lateral opening of the first positioning groove can facilitate the operator to screw the screw so that the screw contacts the plane on the rotating shaft to fix the brake block to the rotating shaft. The axial installation position of the brake block on the motor is positioned by this tooling, thereby ensuring that after the subsequent brake pad is installed, the axial spacing between the brake blocks meets the standard requirements.

[0008] Preferably, a second positioning groove for accommodating a rotating shaft of the motor is provided on the top of the positioning block, and the second positioning groove extends axially and is connected with the first positioning groove.

[0009] The groove wall of the second positioning groove can contact the side wall of the rotating shaft of the motor, so that the position of the entire tooling is more accurate, so as to further realize the accurate positioning of the axial position of the brake block by the tooling.

[0010] Preferably, the second positioning groove is open laterally, and the lateral opening side of the second positioning groove is the same side as the lateral opening side of the first positioning groove.

[0011] The lateral opening of the second positioning groove can facilitate the contact and cooperation between the tooling and the motor shaft, and also facilitates observation by the operator.

[0012] Preferably, a placement groove for placing the magnetic attraction component is provided on the top of the positioning block, and a groove wall of the placement groove is in contact with and cooperates with the magnetic attraction component.

[0013] The magnetic element can be positioned by placing the groove, and the groove wall of the placing groove contacts and cooperates with the magnetic element to ensure that the magnetic element is set horizontally, thereby avoiding the magnetic element from shifting and ensuring that the brake block is horizontal when being adsorbed.

[0014] Preferably, an escape space for evading the magnetic attraction component is provided between the top and the bottom of the positioning block, and the escape space is communicated with the first positioning groove.

[0015] Different motors have brake blocks that need to be fixed in different axial positions, so by setting an avoidance space, magnetic parts of different thicknesses can be avoided, thereby achieving the axial positioning effect of different brake blocks and increasing the versatility of the tooling.

[0016] Preferably, the positioning block comprises a magnetic member fixing block and a positioning block body which are detachably fixed to each other, the magnetic member fixing block constitutes the top of the positioning block, and the magnetic member fixing block is provided with the magnetic member.

[0017] Usually the magnetic part and the positioning block are fixed by glue, which is troublesome to disassemble. Therefore, the magnetic part fixing block and the positioning block body are detachably fixed, and the magnetic part fixing block is provided with a magnetic part. The magnetic part can be replaced by directly replacing the magnetic part fixing block without removing the magnetic part, which is more convenient.

[0018] Preferably, the positioning block body is provided with an axially extending fixing groove, and the magnetic attraction member fixing block is provided with a fixing protrusion extending into the fixing groove, and the fixing groove and the fixing protrusion are fixed to each other by a laterally extending locking member.

[0019] The cooperation of the fixing groove and the fixing protrusion realizes the lateral position fixation between the magnetic suction component fixing block and the positioning block body; the fixation of the two is realized by the laterally extending locking member, so as to determine the axial position of the magnetic suction component fixing block and the positioning block body, thereby ensuring the axial position of the magnetic suction component is determined, and finally ensuring that the axial position of the brake block is determined.

[0020] The utility model has the advantage of assisting the axial position of the motor brake block when it is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the magnetic suction fixing block.

[0024] Figure 4 It is a structural schematic diagram of the positioning block body.

[0025] Figure 5 It is a schematic diagram of the structure of the utility model when in use.

[0026] Figure 6 This is a cross-sectional view of the brake block and brake pad of the motor.

[0027] Figure numbers: 1, positioning block; 2, positioning block body; 3, magnetic suction member fixing block; 4, magnetic suction member; 41, avoidance space; 51, first positioning groove; 52, second positioning groove; 6, placement groove; 7, locking member; 71, fixing protrusion; 72, fixing groove; 100, brake block; 101, screw hole; 200, rotating shaft; 300, housing; 400, brake pad. DETAILED DESCRIPTION

[0028] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0029] like Figure 6As shown, the motor includes a housing 300 and a rotating shaft 200, a brake block 100 is sleeved and fixed on the end of the rotating shaft 200, and a brake pad 400 is provided on the axial side of the brake block 100. When the motor is powered on, the brake block 100 and the brake pad 400 are spaced apart in the axial direction. When the motor is powered off, the brake pad 400 moves toward the brake block 100 under the action of a return spring (not shown in the figure) and contacts the brake block 100 to brake the rotating shaft 200.

[0030] like Figure 1 and Figure 2 As shown, this embodiment discloses an auxiliary tooling for assembling a motor brake block, including a positioning block 1, the positioning block 1 includes a positioning block body 2 and a magnetic fixing block 3 that are detachably fixed to each other, the magnetic fixing block 3 constitutes the top of the positioning block 1, and the bottom of the positioning block body 2 constitutes the bottom of the positioning block 1.

[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the bottom of the positioning block body 2 is provided with a contact surface (not shown) for contacting the axial end surface of the motor housing 300. A first positioning groove 51 extending axially and used to accommodate the brake shoe 100 is provided at the center of the positioning block body 2. The first positioning groove 51 is opened to the front side, and the cross-section of the circumferential inner edge of the first positioning groove 51 is arc-shaped.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the magnetic component fixing block 3 is located at the upper end of the positioning block body 2, and the magnetic component fixing block 3 is provided with two placement grooves 6 opening downward, and the magnetic component 4 is fixed in the placement groove 6 by glue, and the circumferential cross-section shape of the placement groove 6 and the magnetic component 4 is rectangular. A second positioning groove 52 extending along the axial direction and used to accommodate the rotating shaft 200 is provided at the center of the magnetic component fixing block 3, and the circumferential inner edge cross-section shape of the second positioning groove 52 is arc-shaped and is opened to the front side, and the second positioning groove 52 is located between the two placement grooves 6; when the magnetic component fixing block 3 is fixed to the positioning block body 2, the second positioning groove 52 is located above the first positioning groove 51 and communicates with the first positioning groove 51.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown, the front side of the positioning block body 2 is provided with two notches, which are located on the left and right sides of the first positioning groove 51. The magnetic attraction fixing block 3 and the notches are surrounded to form an escape space 41 for escaping the magnetic attraction 4. The escape space 41 is connected to the first positioning groove 51 in the left-right direction.

[0034] like Figure 1 , Figure 3 and Figure 4 As shown, the rear end of the positioning block body 2 is provided with an axially extending fixing groove 72, and the rear end of the magnetic member fixing block 3 is provided with an axially extending fixing protrusion 71 for inserting into the fixing groove 72. The rear end of the positioning block body 2 and the fixing protrusion 71 are both provided with threaded holes extending in the front-to-back direction, and the locking member 7 passes through the threaded holes to achieve the fixing of the positioning block body 2 and the magnetic member fixing block 3.

[0035] When the tooling is used, the operator first sets the brake block 100 on the rotating shaft 200 of the motor, then places the entire positioning block 1 on the end face of the motor housing 300, and moves the positioning block 1 close to the brake block 100, so that the brake block 100 contacts the groove wall of the first positioning groove 51, and the rotating shaft 200 contacts the groove wall of the second positioning groove 52, and the magnetic suction member 4 absorbs the brake block 100, so that the axial position of the brake block 100 is fixed. When the brake block 100 is absorbed, it is necessary to ensure that the screw hole 101 on the brake block 100 faces outward to facilitate the operator to screw the screw, and then the operator screws the screw to achieve the fixation of the brake block 100 and the rotating shaft 200.

Claims

1. An auxiliary tool for assembling a motor brake block, characterized in that: It includes a positioning block, the bottom of which is provided with a contact surface for contacting the end face of the motor housing, a first positioning groove extending axially and used to accommodate a brake shoe is provided between the bottom and the top of the positioning block, the first positioning groove is arranged with a lateral opening, and a magnetic suction piece is provided on the top of the positioning block, and the magnetic suction piece is used to adsorb the brake shoe in the first positioning groove.

2. The auxiliary tooling for assembling the motor brake block according to claim 1, characterized in that: A second positioning groove for accommodating the motor shaft is provided on the top of the positioning block, and the second positioning groove extends axially and is communicated with the first positioning groove.

3. The auxiliary tooling for assembling the motor brake block according to claim 2, characterized in that: The second positioning groove is open laterally, and the lateral opening side of the second positioning groove is the same side as the lateral opening side of the first positioning groove.

4. The auxiliary tooling for assembling the motor brake block according to claim 1, characterized in that: A placement groove for placing the magnetic attraction piece is provided on the top of the positioning block, and a groove wall of the placement groove is in contact with and cooperates with the magnetic attraction piece.

5. The auxiliary tooling for assembling the motor brake block according to claim 1, characterized in that: An escape space for evading the magnetic attraction component is provided between the top and the bottom of the positioning block, and the escape space is communicated with the first positioning groove.

6. The auxiliary tool for assembling a motor brake block according to any one of claims 1 to 5, characterized in that: The positioning block comprises a magnetic member fixing block and a positioning block body which are detachably fixed to each other. The magnetic member fixing block constitutes the top of the positioning block, and the magnetic member fixing block is provided with the magnetic member.

7. The auxiliary tooling for assembling the motor brake block according to claim 6, characterized in that: The positioning block body is provided with an axially extending fixing groove, and the magnetic attraction member fixing block is provided with a fixing protrusion extending into the fixing groove. The fixing groove and the fixing protrusion are fixed to each other by a locking member extending laterally.

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