Motor shaft blank forging device

Abstract

The invention discloses a motor shaft blank forging device, and belongs to the technical field of motor shaft machining, the motor shaft blank forging device comprises a bottom plate, a supporting circular plate is fixedly mounted on the bottom plate, and a position changing assembly, a position adjusting assembly, a shifting assembly and an auxiliary assembly are arranged on the bottom plate. The positioning efficiency and the repeated precision are improved through a transmission mechanism of a gear and rack pair, manual intervention is reduced, coordinated operation of the position adjusting assembly and the position changing assembly can be achieved through the linkage unit, and therefore the procedures of positioning, clamping, forging and the like of the device can be seamlessly connected, the procedure conversion time is greatly shortened, and the production efficiency is improved. According to the hammer forging device for the motor shaft blank, the production efficiency is remarkably improved, the position of the motor shaft blank can be rapidly adjusted by arranging the position changing assembly and the position adjusting assembly, and therefore multi-angle and multi-position hammer forging machining of the motor shaft blank is achieved by conducting hammer forging on the end face and the circumferential face of the motor shaft blank.

Description

Technical Field

[0001] The present invention relates to the technical field of motor shaft processing, and in particular to a forging device for motor shaft blanks. Background Art

[0002] In the forging process of motor shaft blanks, traditional methods usually use manual operation or simple mechanical devices for positioning and clamping, which have problems such as low positioning accuracy, long process conversion time, and low production efficiency. Due to the complex shape of motor shaft blanks, forging and hammering need to be carried out at multiple angles and positions. Existing equipment is difficult to achieve rapid and accurate position adjustment, resulting in unstable processing quality and easy surface damage of the blank due to rigid contact. In addition, there is a lack of an effective linkage mechanism in the existing technology, and the connection between each process is not smooth, further affecting the overall production efficiency. Therefore, the present invention provides a forging device for motor shaft blanks. Summary of the Invention

[0003] The present invention aims at the defects in the prior art and provides a forging device for motor shaft blanks, which overcomes the problems that it is impossible to automatically perform forging and hammering on motor shaft blanks at multiple angles and positions, and it is difficult to achieve rapid and accurate position adjustment, easily resulting in poor processing quality.

[0004] To achieve the above object, the present invention provides the following technical solution: A forging device for motor shaft blanks, including a bottom plate, on which a supporting circular plate is fixedly installed. A position-changing component, a position-adjusting component, a displacement component, and an auxiliary component are arranged on the bottom plate. The position-changing component includes a position-changing ring plate, on which four position-changing racks are slidably installed in a circumferential array. Position-changing strip plates are slidably installed on the position-changing racks, and arc-shaped blocks are arranged on the position-changing strip plates. The position-adjusting component includes two position-adjusting racks slidably installed in a circumferential array on the position-changing ring plate. Position-adjusting strip plates are slidably installed on the position-adjusting racks, and position-adjusting circular blocks are arranged on the position-adjusting strip plates. A linkage unit is arranged between the two position-adjusting strip plates and the four position-changing strip plates. The arc-shaped blocks and the position-adjusting circular blocks are used to adjust the position of the motor shaft blank on the supporting circular plate. The displacement component includes two displacement clamping long plates, which are used to assist in adjusting the position of the motor shaft blank on the supporting circular plate. The auxiliary component includes an auxiliary sliding frame, on which a forging circular block is arranged, and the forging circular block is used to perform forging on the motor shaft blank.

[0005] Further, the position-changing component further includes an annular sliding frame slidably installed on the bottom plate. A height-adjusting screw rod is rotatably installed on the bottom plate. The annular sliding frame and the height-adjusting screw rod form a screw pair. A position-changing gear ring is rotatably installed on the annular sliding frame, and the position-changing ring plate is fixedly installed on the position-changing gear ring. The axes of the supporting circular plate, the annular sliding frame, the position-changing gear ring, and the position-changing ring plate are on the same straight line.

[0006] Further, four auxiliary gears are rotatably installed in a circumferential array on the transposition ring plate. The auxiliary gears mesh with the corresponding transposition racks to form a gear-rack pair. The arc-shaped blocks are fixedly installed on the ends of the corresponding transposition strip plates closest to the axis of the transposition ring plate. A spring is arranged between the transposition strip plate and the corresponding transposition rack. A second limiting block is also fixedly arranged on the end of the transposition strip plate closest to the axis of the transposition ring plate. The second limiting block is used to limit the position of the corresponding transposition rack.

[0007] Further, two positioning gears are rotatably installed in a circumferential array on the transposition ring plate. The positioning gears mesh with the corresponding positioning racks to form a gear-rack pair. The positioning round blocks are rotatably installed on the ends of the corresponding positioning strip plates closest to the axis of the transposition ring plate. A spring is arranged between the positioning strip plate and the corresponding positioning rack. A first limiting block is also fixedly arranged on the end of the positioning strip plate closest to the axis of the transposition ring plate. The first limiting block is used to limit the position of the corresponding positioning rack.

[0008] Further, the linkage unit includes a linkage gear ring rotatably installed on the transposition ring plate. A second linkage gear is rotatably installed on the auxiliary gear. A torsion spring is arranged between the auxiliary gear and the second linkage gear. A first linkage gear is rotatably installed on the positioning gear. A torsion spring is arranged between the positioning gear and the first linkage gear. Both the first linkage gear and the second linkage gear mesh with the linkage gear ring to form a gear pair. When the positioning gear and the auxiliary gear rotate synchronously, the moving directions of the transposition rack and the positioning rack are opposite.

[0009] Further, linkage pulleys are symmetrically and rotatably installed on the transposition ring plate. Splined long shafts are fixedly arranged on the positioning round blocks. The splined long shafts and the corresponding linkage pulleys form a splined sliding fit. A transmission group is arranged between the two linkage pulleys.

[0010] Further, the shifting assembly includes a moving carriage slidably installed on the transposition ring plate. Two shifting clamping long plates are symmetrically slidably installed on the moving carriage. A double-headed threaded screw rod is rotatably installed on the moving carriage. The threads at both ends of the double-headed threaded screw rod respectively form a screw pair with the corresponding shifting clamping long plates. A shifting screw rod is fixedly installed on the moving carriage. A shifting pulley is rotatably installed on the transposition ring plate. The shifting pulley and the shifting screw rod form a screw pair.

[0011] Further, the auxiliary assembly includes a support frame fixedly installed on the bottom plate. An auxiliary carriage is slidably installed on the support frame. An auxiliary pulley is rotatably installed on the support frame. An auxiliary screw rod is fixedly arranged on the auxiliary carriage. The auxiliary screw rod and the auxiliary pulley form a screw pair. Four bolts are arranged in a circumferential array between the hammer forging round block and the auxiliary carriage.

[0012] The beneficial effects of the present invention compared with the prior art are as follows: (1) By setting springs and limit blocks, the present invention can achieve flexible contact to avoid damaging the blanks, and at the same time improve the positioning efficiency and repeatability accuracy through the transmission mechanism of the gear-rack pair, reducing manual intervention; (2) By setting the linkage unit, the present invention can achieve the coordinated operation of the position adjustment component and the position conversion component, so that the positioning, clamping, forging and other processes of the device can be seamlessly connected, greatly shortening the process conversion time and significantly improving the production efficiency; (3) By setting the position conversion component and the position adjustment component, the present invention can quickly adjust the position of the motor shaft blank, and then perform hammer forging on the end face and circumferential surface of the motor shaft blank, so as to realize the hammer forging processing of the motor shaft blank at multiple angles and positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 is Figure 1 a partial enlarged schematic view of part A in

[0015] Figure 3 FIG. is a front view of the overall structure of the present invention.

[0016] Figure 4 FIG. is a schematic diagram of the structure at the support circular plate of the present invention.

[0017] Figure 5 FIG. is a schematic diagram of the structure at the position conversion circular plate of the present invention.

[0018] Figure 6 FIG. is a schematic diagram of the structure of the position adjustment circular block of the present invention.

[0019] Figure 7 is Figure 6 a partial enlarged schematic view of part B in

[0020] Figure 8 FIG. is a schematic diagram of the structure at the arc-shaped block of the present invention.

[0021] Figure 9 is Figure 8 a partial enlarged schematic view of part C in

[0022] Figure 10 FIG. is a schematic diagram of the structure at the linkage gear ring of the present invention.

[0023] Figure 11 FIG. is a top view of the structure at the position conversion circular plate of the present invention.

[0024] Reference Signs: 101 - bottom plate; 102 - support frame; 103 - support circular plate; 104 - annular sliding frame; 105 - auxiliary lead screw; 106 - hammer forging circular block; 107 - auxiliary sliding frame; 108 - bolt; 109 - auxiliary motor; 110 - auxiliary pulley; 111 - height adjustment lead screw; 112 - height adjustment motor; 113 - position conversion gear ring; 114 - position conversion ring plate; 115 - position conversion motor; 116 - position conversion gear; 117 - linkage gear ring; 118 - position conversion rack; 119 - position adjustment rack; 120 - displacement clamping long plate; 121 - moving sliding frame; 122 - double - threaded lead screw; 123 - clamping motor; 124 - displacement lead screw; 125 - position conversion strip plate; 126 - arc - shaped block; 127 - position adjustment strip plate; 128 - position adjustment circular block; 129 - displacement motor; 130 - displacement pulley; 131 - position adjustment motor; 132 - transmission long shaft; 133 - transmission belt; 134 - transmission pulley; 135 - spline long shaft; 136 - drive motor; 137 - drive gear; 138 - linkage pulley; 139 - limit block one; 140 - limit block two; 141 - position adjustment gear; 142 - linkage gear one; 143 - auxiliary gear; 144 - linkage gear two. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] Embodiment: Refer to Figures 1-11 , a forging device for a motor shaft blank, including a bottom plate 101, a support circular plate 103 is fixedly installed on the bottom plate 101, a position conversion assembly is arranged on the bottom plate 101, the position conversion assembly includes a position conversion ring plate 114, the position conversion assembly further includes an annular sliding frame 104 slidably installed on the bottom plate 101, a height adjustment lead screw 111 is rotatably installed on the bottom plate 101, the annular sliding frame 104 and the height adjustment lead screw 111 form a screw pair, a height adjustment motor 112 is fixedly installed on the bottom plate 101, the output shaft of the height adjustment motor 112 is fixedly connected to the height adjustment lead screw 111, a position conversion gear ring 113 is rotatably installed on the annular sliding frame 104, the position conversion ring plate 114 is fixedly installed on the position conversion gear ring 113, a position conversion motor 115 is further fixedly installed on the annular sliding frame 104, a position conversion gear 116 is fixedly installed on the output shaft of the position conversion motor 115, the position conversion gear 116 and the position conversion gear ring 113 are meshed to form a gear pair, and the axes of the support circular plate 103, the annular sliding frame 104, the position conversion gear ring 113, and the position conversion ring plate 114 are on the same straight line.

[0027] The lifting motor 112 is started to drive the lifting lead screw 111 to rotate, which causes the annular carriage 104 to move up and down relative to the bottom plate 101. The components on the annular carriage 104 move synchronously. The transposition motor 115 is started to drive the transposition gear 116 to rotate, which causes the transposition gear ring 113 to rotate relative to the annular carriage 104, and the transposition ring plate 114 rotates synchronously.

[0028] Four transposition rack bars 118 are slidably mounted in a circumferential array on the transposition ring plate 114. Four auxiliary gears 143 are rotatably mounted in a circumferential array on the transposition ring plate 114. The auxiliary gears 143 and the corresponding transposition rack bars 118 mesh to form a gear-rack pair. Transposition strip plates 125 are slidably mounted on the transposition rack bars 118. Arc-shaped blocks 126 are provided on the transposition strip plates 125. The arc-shaped blocks 126 are fixedly mounted on the ends of the corresponding transposition strip plates 125 closest to the axis of the transposition ring plate 114. A spring is provided between the transposition strip plates 125 and the corresponding transposition rack bars 118. One end of the spring is fixedly connected to the transposition strip plate 125, and the other end of the spring is fixedly connected to the corresponding transposition rack bar 118. A second limiting block 140 is also fixedly provided on the end of the transposition strip plate 125 closest to the axis of the transposition ring plate 114. The second limiting block 140 is used to limit the position of the corresponding transposition rack bar 118.

[0029] In the initial position, the spring between the transposition strip plate 125 and the transposition rack bar 118 is not compressed. At this time, the arc-shaped block 126 is located at the position farthest from the corresponding transposition rack bar 118, and the transposition rack bar 118 and the second limiting block 140 are not in contact. The four auxiliary gears 143 are driven to rotate synchronously, which causes the four transposition rack bars 118 to move synchronously in the direction close to the axis of the transposition ring plate 114. Under the action of the spring between the transposition rack bar 118 and the transposition strip plate 125, the four transposition strip plates 125 move synchronously in the direction close to the axis of the transposition ring plate 114. When the arc-shaped block 126 touches the surface of the motor shaft blank, under the action of the self-weight of the motor shaft blank, the arc-shaped block 126 cannot move further. The transposition rack bar 118 continues to move, and the spring between the transposition rack bar 118 and the transposition strip plate 125 is compressed. Finally, the transposition rack bar 118 moves to contact the corresponding second limiting block 140. Under the action of the second limiting block 140, at this time, the transposition rack bar 118 continues to move, and the transposition strip plate 125 moves synchronously, that is, at this time, the transposition rack bar 118 and the transposition strip plate 125 move synchronously. Finally, under the action of the four arc-shaped blocks 126, the motor shaft blank is located at the center position of the support circular plate 103.

[0030] An auxiliary component is arranged on the bottom plate 101. The auxiliary component includes an auxiliary carriage 107. A hammer forging round block 106 is arranged on the auxiliary carriage 107. The hammer forging round block 106 is used to perform hammer forging on the motor shaft blank. The auxiliary component further includes a support frame 102 fixedly installed on the bottom plate 101. The auxiliary carriage 107 is slidably installed on the support frame 102. The axes of the auxiliary carriage 107 and the support round plate 103 are on the same straight line. An auxiliary belt pulley 110 is rotatably installed on the support frame 102. An auxiliary lead screw 105 is fixedly arranged on the auxiliary carriage 107. The auxiliary lead screw 105 and the auxiliary belt pulley 110 form a screw pair. Four bolts 108 are arranged in a circumferential array between the hammer forging round block 106 and the auxiliary carriage 107. The hammer forging round block 106 and the auxiliary carriage 107 are fixedly connected by the bolts 108. An auxiliary motor 109 is fixedly installed on the support frame 102. A belt pulley is fixedly installed on the output shaft of the auxiliary motor 109. A belt is arranged between the belt pulley on the output shaft of the auxiliary motor 109 and the auxiliary belt pulley 110. Starting the auxiliary motor 109 drives the auxiliary belt pulley 110 to rotate. Under the action of the auxiliary lead screw 105, the auxiliary carriage 107 moves up and down relative to the bottom plate 101, that is, the hammer forging round block 106 moves up and down relative to the bottom plate 101. After the four arc-shaped blocks 126 complete the position adjustment of the motor shaft blank on the support round plate 103, at this time, the circumferential surface of the motor shaft blank is perpendicular to the lower surface of the bottom plate 101. Drive the auxiliary gear 143 to rotate in the reverse direction, so that the spring between the transposition rack 118 and the transposition strip 125 is restored. At this time, the arc-shaped block 126 still contacts the surface of the motor shaft blank. Then start the auxiliary motor 109 to make the hammer forging round block 106 move up and down reciprocally to perform hammer forging on the motor shaft blank. Under the action of the hammer forging round block 106, the cross-sectional diameter of the motor shaft blank becomes larger, and the arc-shaped block 126 moves in the direction away from the axis of the transposition ring plate 114, and the spring between the transposition strip 125 and the transposition rack 118 is compressed. That is, at this time, the spring between the transposition rack 118 and the transposition strip 125 can realize the displacement concession for the arc-shaped block 126, and under the action of the four arc-shaped blocks 126, the position of the motor shaft blank is assisted and restricted.

[0031] A positioning adjustment component is provided on the bottom plate 101. The positioning adjustment component includes two positioning adjustment racks 119 that are slidably mounted on the position-changing ring plate 114 in a circumferential array. Positioning adjustment strips 127 are slidably mounted on the positioning adjustment racks 119. Positioning adjustment circular blocks 128 are provided on the positioning adjustment strips 127. Two positioning adjustment gears 141 are rotatably mounted on the position-changing ring plate 114 in a circumferential array. The positioning adjustment gears 141 and the corresponding positioning adjustment racks 119 are engaged to form a gear-rack pair. The positioning adjustment circular blocks 128 are rotatably mounted on the ends of the corresponding positioning adjustment strips 127 that are closest to the axis of the position-changing ring plate 114. A spring is provided between the positioning adjustment strip 127 and the corresponding positioning adjustment rack 119. One end of the spring is fixedly connected to the positioning adjustment strip 127, and the other end of the spring is fixedly connected to the corresponding positioning adjustment rack 119. A first limiting block 139 is fixedly provided on the end of the positioning adjustment strip 127 that is closest to the axis of the position-changing ring plate 114. The first limiting block 139 is used to limit the position of the corresponding positioning adjustment rack 119.

[0032] In the initial position, the spring between the positioning adjustment strip 127 and the positioning adjustment rack 119 is not compressed. At this time, the positioning adjustment circular block 128 is located at the position farthest from the corresponding positioning adjustment rack 119. The positioning adjustment rack 119 and the first limiting block 139 are not in contact. Driving the two positioning adjustment gears 141 to rotate synchronously will cause the two positioning adjustment racks 119 to move synchronously in the direction close to the axis of the position-changing ring plate 114. Under the action of the spring between the positioning adjustment rack 119 and the positioning adjustment strip 127, the two positioning adjustment strips 127 will move synchronously in the direction close to the axis of the position-changing ring plate 114. When the positioning adjustment circular block 128 touches the end face of the motor shaft blank, due to the self-weight of the motor shaft blank, the positioning adjustment circular block 128 cannot move further. The positioning adjustment rack 119 continues to move, and the spring between the positioning adjustment rack 119 and the positioning adjustment strip 127 is compressed. Eventually, the positioning adjustment rack 119 moves to contact the corresponding first limiting block 139. Under the action of the first limiting block 139, at this time, when the positioning adjustment rack 119 continues to move, the positioning adjustment strip 127 moves synchronously, that is, at this time, the positioning adjustment rack 119 and the positioning adjustment strip 127 move synchronously. Eventually, under the action of the two positioning adjustment circular blocks 128, the motor shaft blank is located at the position between the two positioning adjustment circular blocks 128.

[0033] Symmetrically rotatably mounted on the transposition ring plate 114 are linkage belt pulleys 138. Spline long shafts 135 are fixedly arranged on the position adjustment circular blocks 128. The spline long shafts 135 and the corresponding linkage belt pulleys 138 form a spline sliding fit. A transmission group is arranged between the two linkage belt pulleys 138. The transmission group includes a transmission long shaft 132, two transmission belts 133, and two transmission belt pulleys 134. The transmission long shaft 132 is rotatably mounted on the transposition ring plate 114. The transmission belt pulleys 134 are fixedly mounted on the transmission long shaft 132. The transmission belts 133 are arranged between the linkage belt pulleys 138 and the corresponding transmission belt pulleys 134. A position adjustment motor 131 is fixedly mounted on the transposition ring plate 114. The output shaft of the position adjustment motor 131 is fixedly connected to the transmission long shaft 132.

[0034] Start the position adjustment motor 131 to drive the transmission long shaft 132 to rotate. Under the action of the transmission belts 133 and the transmission belt pulleys 134, the two linkage belt pulleys 138 rotate synchronously. Under the action of the spline long shafts 135, the two position adjustment circular blocks 128 rotate synchronously. When the motor shaft blank is located between the two position adjustment circular blocks 128, start the position adjustment motor 131 to drive the two position adjustment circular blocks 128 to rotate synchronously, so that the motor shaft blank rotates synchronously, thereby changing the position of the motor shaft blank on the support circular plate 103.

[0035] A linkage unit is arranged between the two position adjustment strip plates 127 and the four transposition strip plates 125. The linkage unit includes a linkage gear ring 117 rotatably mounted on the transposition ring plate 114. A second linkage gear 144 is rotatably mounted on the auxiliary gear 143. A torsion spring is arranged between the auxiliary gear 143 and the second linkage gear 144. One end of the torsion spring is fixedly connected to the auxiliary gear 143, and the other end of the torsion spring is fixedly connected to the second linkage gear 144. A first linkage gear 142 is rotatably mounted on the position adjustment gear 141. A torsion spring is arranged between the position adjustment gear 141 and the first linkage gear 142. One end of the torsion spring is fixedly connected to the position adjustment gear 141, and the other end of the torsion spring is fixedly connected to the first linkage gear 142. The first linkage gear 142 and the second linkage gear 144 are both engaged with the linkage gear ring 117 to form a gear pair. When the position adjustment gear 141 and the auxiliary gear 143 rotate synchronously, the moving directions of the transposition rack 118 and the position adjustment rack 119 are opposite. A driving motor 136 is fixedly mounted on the transposition ring plate 114. A driving gear 137 is fixedly mounted on the output shaft of the driving motor 136. The driving gear 137 and the linkage gear ring 117 are engaged to form a gear pair.

[0036] In the initial position, both the transposition rack 118 and the position adjustment rack 119 are located at the position farthest from the axis of the transposition ring plate 114. Start the driving motor 136 to drive the driving gear 137 to rotate. Under the action of the linkage gear ring 117, both the first linkage gear 142 and the second linkage gear 144 rotate synchronously. When the transposition rack 118 moves towards the axis of the transposition ring plate 114, at this time, the position adjustment rack 119 cannot move away from the axis of the transposition ring plate 114, and the torsion spring between the first linkage gear 142 and the position adjustment gear 141 is compressed. Under the action of the torsion spring between the auxiliary gear 143 and the second linkage gear 144, the auxiliary gear 143 rotates synchronously to make the transposition rack 118 move towards the axis of the transposition ring plate 114. When the position adjustment rack 119 moves towards the axis of the transposition ring plate 114, at this time, the transposition rack 118 cannot move away from the axis of the transposition ring plate 114, and the torsion spring between the auxiliary gear 143 and the second linkage gear 144 is compressed. Under the action of the torsion spring between the position adjustment gear 141 and the first linkage gear 142, the position adjustment gear 141 rotates synchronously to make the position adjustment rack 119 move towards the axis of the transposition ring plate 114, that is, by controlling the rotation direction of the linkage gear ring 117, the switching between the transposition rack 118 and the position adjustment rack 119 is realized.

[0037] A displacement assembly is arranged on the bottom plate 101. The displacement assembly includes two displacement clamping long plates 120. The displacement clamping long plates 120 are used to assist in adjusting the position of the motor shaft blank on the support circular plate 103. The displacement assembly includes a moving carriage 121 slidably mounted on the transposition ring plate 114. The two displacement clamping long plates 120 are symmetrically slidably mounted on the moving carriage 121. A double-headed threaded screw 122 is rotatably mounted on the moving carriage 121. The threads at both ends of the double-headed threaded screw 122 respectively form a screw pair with the corresponding displacement clamping long plate 120. A clamping motor 123 is fixedly mounted on the moving carriage 121. The output shaft of the clamping motor 123 is fixedly connected to the double-headed threaded screw 122. A displacement screw 124 is fixedly mounted on the moving carriage 121. A displacement pulley 130 is rotatably mounted on the transposition ring plate 114. The displacement pulley 130 and the displacement screw 124 form a screw pair. A displacement motor 129 is fixedly mounted on the transposition ring plate 114. A pulley is fixedly mounted on the output shaft of the displacement motor 129. A belt is arranged between the pulley on the output shaft of the displacement motor 129 and the displacement pulley 130.

[0038] Start the displacement motor 129 to drive the displacement pulley 130 to rotate. Under the action of the displacement screw 124, the moving carriage 121 moves along the axis of the displacement screw 124, and the components on the moving carriage 121 move synchronously. Start the clamping motor 123 to drive the double-headed threaded screw 122 to rotate, so that the two displacement clamping long plates 120 move towards each other or move away from each other.

[0039] Working principle: In the initial position, the shifting and clamping long plate 120, the moving carriage 121, the arc-shaped block 126, and the position-adjusting circular block 128 are all at the position farthest from the axis of the supporting circular plate 103. At this time, the moving carriage 121, the arc-shaped block 126, and the position-adjusting circular block 128 are all located outside the supporting circular plate 103. When the height-adjusting motor 112 is started to drive the annular carriage 104 to move up and down, the moving carriage 121, the arc-shaped block 126, and the position-adjusting circular block 128 will not come into contact with the supporting circular plate 103. Therefore, starting the height-adjusting motor 112 makes the annular carriage 104 move to the position closest to the lower surface of the bottom plate 101. At this time, the moving carriage 121, the arc-shaped block 126, and the position-adjusting circular block 128 are all below the lower surface of the supporting circular plate 103, thus facilitating the placement of the motor shaft blank to be processed onto the supporting circular plate 103.

[0040] The heated motor shaft blank is placed onto the supporting circular plate 103 by a forklift. When placing, the axis of the motor shaft blank is made parallel to the lower surface of the bottom plate 101. Then, the position-changing motor 115 is started to adjust the position of the position-changing ring plate 114 so that the two shifting and clamping long plates 120 are respectively located on both sides of the two end faces of the motor shaft blank. Then, the clamping motor 123 and the shifting motor 129 are started to make the two shifting and clamping long plates 120 clamp the motor shaft blank. The shifting motor 129 is started to adjust the position of the moving carriage 121 so that the axis of the motor shaft blank is perpendicular to and intersects with the axis of the supporting circular plate 103.

[0041] Then, the shifting and clamping long plate 120 and the moving carriage 121 are made to return to the initial position. The position-changing motor 115 is continued to be started to adjust the position of the position-changing ring plate 114 so that the two position-adjusting circular blocks 128 are respectively located on both sides of the two end faces of the motor shaft blank. By starting the height-adjusting motor 112 to adjust the position of the annular carriage 104, the axis of the position-adjusting circular block 128 and the axis of the motor shaft blank are made to be on the same straight line. Then, the driving motor 136 is started to drive the linkage gear ring 117 to rotate, making the two position-adjusting rack bars 119 move towards the direction close to the axis of the position-changing ring plate 114. Finally, the two position-adjusting circular blocks 128 respectively come into contact with the two end faces of the motor shaft blank, and at this time, the spring between the position-adjusting rack bar 119 and the position-adjusting strip plate 127 is not compressed. Then, the motor shaft blank at this position is hammered by the hammer forging circular block 106. After hammering a specified number of times, the linkage gear ring 117 is driven to rotate so that the position-adjusting rack bar 119 contacts the corresponding limiting block 1. The position-adjusting motor 131 is started, and under the action of the transmission group, the two position-adjusting circular blocks 128 rotate synchronously, that is, the motor shaft blank rotates synchronously, thereby adjusting the position of the motor shaft blank on the supporting circular plate 103, and further adjusting the position where the motor shaft blank contacts the hammer forging circular block 106. Repeat the above steps to make the hammer forging circular block 106 hammer the circumferential surface of the motor shaft blank.

[0042] After completing the hammer forging of the circumferential surface of the motor shaft blank, adjust the position of the position-changing ring plate 114 so that both positioning circular blocks 128 come into contact with the circumferential surface of the motor shaft blank. Then drive the annular carriage 104 to move upward. Under the action of the positioning circular blocks 128, the motor shaft blank moves upward synchronously. Then start the positioning motor 131 to drive the positioning circular blocks 128 to rotate, thereby causing the motor shaft blank to rotate synchronously, making the axis of the motor shaft blank parallel to the axis of the supporting circular plate 103. Then, by adjusting the position of the annular carriage 104, place the motor shaft blank on the supporting circular plate 103, and then make the positioning circular blocks 128 return to their initial positions.

[0043] Then drive the linkage gear ring 117 to rotate so that all four arc-shaped blocks 126 come into contact with the surface of the motor shaft blank. Under the action of the arc-shaped blocks 126, make the axis of the motor shaft blank and the axis of the supporting circular plate 103 be on the same straight line. Then make the spring between the position-changing rack 118 and the position-changing strip 125 recover. Then use the hammer forging block 106 to perform hammer forging on the end face of the motor shaft blank. After hammer forging a specified number of times, make the position-changing rack 118 move to contact the second limiting block 140. At this time, the motor shaft blank is fixed by the four arc-shaped blocks 126. Then drive the position-changing ring plate 114 to rotate. Under the action of the arc-shaped blocks 126, the motor shaft blank rotates synchronously, that is, the position adjustment of the motor shaft blank is realized. Repeat the above steps to make the hammer forging block 106 perform hammer forging on the end face of the motor shaft blank.

[0044] Repeat the above steps to perform multiple hammer forging operations on the end face and circumferential surface of the motor shaft blank, that is, the forging of the motor shaft blank is realized.

[0045] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes starting from the above concepts without creative labor, and all fall within the protection scope of the present invention.

Claims

1. A forging device for a motor shaft blank, comprising a bottom plate (101), and a supporting circular plate (103) is fixedly installed on the bottom plate (101), and is characterized in that: A position-changing component, an alignment component, a displacement component, and an auxiliary component are arranged on the bottom plate (101). The position-changing component includes a position-changing ring plate (114), and four position-changing racks (118) are slidably installed on the position-changing ring plate (114) in a circumferential array. Position-changing strip plates (125) are slidably installed on the position-changing racks (118), and arc-shaped blocks (126) are arranged on the position-changing strip plates (125). The alignment component includes two alignment racks (119) slidably installed on the position-changing ring plate (114) in a circumferential array. Alignment strip plates (127) are slidably installed on the alignment racks (119), and alignment round blocks (128) are arranged on the alignment strip plates (127). A linkage unit is arranged between the two alignment strip plates (127) and the four position-changing strip plates (125). The arc-shaped blocks (126) and the alignment round blocks (128) are used to adjust the position of the motor shaft blank on the supporting circular plate (103). The displacement component includes two displacement clamping long plates (120), and the displacement clamping long plates (120) are used to assist in adjusting the position of the motor shaft blank on the supporting circular plate (103). The auxiliary component includes an auxiliary sliding frame (107), and a hammer-forging round block (106) is arranged on the auxiliary sliding frame (107), and the hammer-forging round block (106) is used to perform hammer forging on the motor shaft blank.

2. The forging device for the motor shaft blank according to claim 1, wherein: The position-changing component further includes an annular sliding frame (104) slidably installed on the bottom plate (101). A height-adjusting screw rod (111) is rotatably installed on the bottom plate (101). The annular sliding frame (104) and the height-adjusting screw rod (111) form a screw pair. A position-changing gear ring (113) is rotatably installed on the annular sliding frame (104). The position-changing ring plate (114) is fixedly installed on the position-changing gear ring (113). The axes of the supporting circular plate (103), the annular sliding frame (104), the position-changing gear ring (113), and the position-changing ring plate (114) are on the same straight line.

3. An electric motor shaft blank forging device according to claim 2, characterized in that: Four auxiliary gears (143) are rotatably installed on the position-changing ring plate (114) in a circumferential array. The auxiliary gears (143) and the corresponding position-changing racks (118) are engaged to form a gear-rack pair. The arc-shaped blocks (126) are fixedly installed on the ends of the corresponding position-changing strip plates (125) closest to the axis of the position-changing ring plate (114). A spring is arranged between the position-changing strip plates (125) and the corresponding position-changing racks (118). A second limiting block (140) is also fixedly arranged on the end of the position-changing strip plate (125) closest to the axis of the position-changing ring plate (114), and the second limiting block (140) is used to limit the position of the corresponding position-changing rack (118).

4. An electric motor shaft blank forging device according to claim 3, characterized in that: Two positioning gears (141) are rotatably mounted on the circumferential array of the commutation ring plate (114). The positioning gears (141) are engaged with the corresponding positioning racks (119) to form a gear-rack pair. The positioning round block (128) is rotatably mounted on the end of the corresponding positioning strip plate (127) closest to the axis of the commutation ring plate (114). A spring is arranged between the positioning strip plate (127) and the corresponding positioning rack (119). A first limiting block (139) is fixedly arranged on the end of the positioning strip plate (127) closest to the axis of the commutation ring plate (114), and the first limiting block (139) is used to limit the position of the corresponding positioning rack (119).

5. An electric motor shaft blank forging device according to claim 4, characterized in that: The linkage unit includes a linkage gear ring (117) rotatably mounted on the commutation ring plate (114). A second linkage gear (144) is rotatably mounted on the auxiliary gear (143). A torsion spring is arranged between the auxiliary gear (143) and the second linkage gear (144). A first linkage gear (142) is rotatably mounted on the positioning gear (141). A torsion spring is arranged between the positioning gear (141) and the first linkage gear (142). Both the first linkage gear (142) and the second linkage gear (144) are engaged with the linkage gear ring (117) to form a gear pair. When the positioning gears (141) and the auxiliary gears (143) rotate synchronously, the moving directions of the commutation racks (118) and the positioning racks (119) are opposite.

6. The forging device for the motor shaft blank according to claim 5, characterized in that: Linkage pulleys (138) are symmetrically and rotatably mounted on the commutation ring plate (114). Spline long shafts (135) are fixedly arranged on the positioning round blocks (128). The spline long shafts (135) and the corresponding linkage pulleys (138) form a spline sliding fit. A transmission group is arranged between the two linkage pulleys (138).

7. An electric motor shaft blank forging device according to claim 6, characterized in that: The shifting assembly includes a moving carriage (121) slidably mounted on the commutation ring plate (114). Two shifting clamping long plates (120) are symmetrically slidably mounted on the moving carriage (121). A double-headed threaded screw rod (122) is rotatably mounted on the moving carriage (121). The threads at both ends of the double-headed threaded screw rod (122) respectively form a screw pair with the corresponding shifting clamping long plates (120). A shifting screw rod (124) is fixedly mounted on the moving carriage (121). A shifting pulley (130) is rotatably mounted on the commutation ring plate (114), and the shifting pulley (130) and the shifting screw rod (124) form a screw pair.

8. An electric motor shaft blank forging device according to claim 7, characterized in that: The auxiliary assembly includes a support frame (102) fixedly mounted on the bottom plate (101). The auxiliary carriage (107) is slidably mounted on the support frame (102). An auxiliary pulley (110) is rotatably mounted on the support frame (102). An auxiliary screw rod (105) is fixedly arranged on the auxiliary carriage (107). The auxiliary screw rod (105) and the auxiliary pulley (110) form a screw pair. Four bolts (108) are arranged in a circumferential array between the hammer forging round block (106) and the auxiliary carriage (107).

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