CN215509811U - Rotor knurling mechanism - Google Patents

Abstract

The utility model discloses a rotor knurling mechanism, which relates to the technical field of worm assembly, and comprises a mounting frame, an upper hob driving assembly, a lower hob assembly and a rotor driving assembly; the upper hob driving assembly comprises a driving motor, a belt transmission device, a speed reducer, a turntable, a first connecting rod and a second connecting rod; the lower hob assembly comprises a lower hob base and a lower hob which is fixedly arranged on the lower hob base; the rotor driving assembly comprises a supporting seat, a first supporting plate, a first air cylinder, a second supporting plate, a second air cylinder and a transverse sliding seat for placing a rotor worm, wherein the supporting seat can be vertically movably positioned on a lower cutter holder, and the first supporting plate and the second supporting plate are respectively vertically arranged on two sides of the supporting seat; the upper hob is driven by the upper hob driving assembly to transversely move relative to the lower hob, knurling operation on the shaft end of the rotor is formed, the whole structure is simple and compact, and automation is achieved.

Description

Rotor knurling mechanism

Technical Field

The utility model relates to the technical field of motor assembly, in particular to a rotor knurling mechanism.

Background

Motors play an important role in various industries, wherein automotive lift motor rotor shafts are used to provide power in automobiles; the rotor shaft is applied to various motors, and in the process of producing the rotor shaft, a knurling process is also commonly used, and straight lines or reticulate patterns are mainly formed on the surface of the rotor shaft to play a role in skid resistance and increase the friction force of the rotor shaft; knurling of a rotor shaft is one of the main processes of motor production, and most motor manufacturers adopt a knurling tool to conduct knurling at present; however, the existing knurling machine is usually completed by manual assistance, the labor cost is high, the working efficiency is low, potential safety hazards exist, meanwhile, most of the existing knurling mechanisms can only knurl the rotor shaft of one type, and when knurling is needed for the rotor shafts of different types, another knurling mechanism is needed to complete, so that the production cost is increased, and the occupied space is increased; therefore, in order to meet the current situation, it is urgently needed to develop a rotor knurling mechanism to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and a primary object of the present invention is to provide a rotor knurling mechanism, which forms a knurling operation on a rotor shaft end by driving an upper hob to move transversely relative to a lower hob through an upper hob driving assembly, and has a simple and compact overall structure, and is completed automatically.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a rotor knurling mechanism comprises a mounting frame, an upper hob driving assembly, a lower hob assembly and a rotor driving assembly; the upper hob driving assembly comprises a driving motor, a belt transmission device, a speed reducer, a rotary table, a first connecting rod and a second connecting rod, wherein the speed reducer is installed on the installation frame, the output end of the belt transmission device is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the rotary table, a rocker arm is tightly arranged at a position, far away from an axis center, of the rotary table, the rocker arm is hinged with the first connecting rod, the first connecting rod is hinged with the second connecting rod, the upper hob can be transversely movably installed on the installation frame, the upper hob is fixedly connected with the second connecting rod, the second connecting rod can be transversely movably positioned on the installation frame, the belt transmission device drives the rotary table to rotate through the speed reducer, and the rotary table rotates to drive the second connecting rod and the upper hob to transversely move; the lower hob assembly comprises a lower hob base and a lower hob which is fixedly arranged on the lower hob base, and the upper hob can be transversely and movably positioned above the lower hob; the rotor driving component comprises a supporting seat, a first supporting plate, a first cylinder, a second supporting plate, a second cylinder and a transverse sliding seat for placing a rotor worm, wherein the supporting seat can be vertically movably positioned on a lower cutter seat, the first supporting plate and the second supporting plate are respectively vertically arranged on two sides of the supporting seat, the first cylinder is arranged on one side, close to the first supporting plate, of the supporting seat, the second cylinder is arranged on one side, close to the second supporting plate, of the supporting seat, the transverse sliding seat is transversely and slidably positioned on the supporting seat, the shaft end of the first cylinder can drive the transverse sliding seat to transversely move to abut against the second supporting plate for abutting against the transverse sliding seat to perform knurling, the shaft end of the second cylinder can drive the transverse sliding seat to transversely move to abut against the first supporting plate for pushing the knurled rotor to the other side to prepare discharging, and the shaft end of the rotor on the transverse sliding seat can be positioned between an upper hob and a lower hob in a rolling manner, the lower hob transversely moves to penetrate through the lower hob.

As a preferred embodiment: the knurling mechanism further comprises a first adjusting screw rod for adjusting the height of the lower tool apron and a second height adjusting assembly for adjusting the height of the rotor driving assembly, the lower tool apron can be vertically movably positioned on the mounting frame, the first adjusting screw rod is connected with the lower tool apron, and the first adjusting screw rod drives the lower tool apron to vertically move; the second height adjusting assembly comprises a second adjusting screw and a second sliding seat, a groove for the second adjusting screw to penetrate through is formed in the second sliding seat, the second sliding seat can move up and down relative to the second adjusting screw, the second adjusting screw penetrates through the groove and is connected with the lower tool apron, and the second adjusting screw enables the second sliding seat to be fixed or loosened relative to the lower tool apron.

As a preferred embodiment: the belt transmission device comprises a rotating shaft, a driving wheel, a driven wheel and a transmission belt, the driving wheel is connected to the shaft end of the driving motor, one end of the rotating shaft is connected with the driven wheel, the other end of the rotating shaft is connected with the input end of the speed reducer, the transmission belt is sleeved on the driving wheel and the driven wheel, and the driving motor drives the rotating shaft to rotate through the driving wheel, the transmission belt and the driven wheel.

As a preferred embodiment: the first connecting rod is provided with a connecting shaft in a hinged mode at one end far away from the rocker arm, and the second connecting rod is hinged to the connecting shaft.

As a preferred embodiment: the utility model discloses a hobbing cutter, including first connecting rod, second connecting rod, last hobbing cutter, mounting bracket, second connecting rod downside fastening is provided with and is used for connecting the last blade holder of last hobbing cutter, should go up the hobbing cutter and connect the front side in last blade holder, be provided with the transverse guide who is used for supplying blade holder lateral shifting on the mounting bracket, the rear side of going up the blade holder is provided with the spout, and this spout and transverse guide phase-match, this last blade holder and last hobbing cutter pass through the spout and can lateral shifting on transverse guide.

As a preferred embodiment: the mounting bracket comprises a left support, a middle support plate and a right support, the second connecting rod is installed on the left support in a penetrating mode, the second connecting rod and the upper hob can transversely move on the left support, and the speed reducer is installed on the right support.

As a preferred embodiment: and the first support plate and the second support plate are both provided with a proximity sensor for sensing the arrival of the transverse sliding seat.

As a preferred embodiment: and a material seat for placing the rotor worm is arranged on the transverse sliding seat, and the material seat moves along with the movement of the transverse sliding seat.

Compared with the prior art, the knurling machine has the advantages that the knurling machine has obvious advantages and beneficial effects, particularly, the knurling operation on the shaft end of the rotor is formed by adopting the upper hob driving assembly to drive the upper hob to transversely move relative to the lower hob, the whole structure is simple and compact, and the knurling operation is automatically completed; adjust the rotor drive assembly through second altitude mixture control subassembly and for the height of lower blade holder, adjust down the holistic height of blade holder and rotor drive assembly through first altitude mixture control subassembly to with last hobbing cutter and down the distance between the hobbing cutter can be adjusted, with the rotor shaft that adapts to different models, the range of application is wide.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of a knurling mechanism of the present invention;

FIG. 2 is a perspective view of the knurling mechanism of the present invention with the outer shell removed;

FIG. 3 is a perspective view of the rotor driving assembly of the present invention;

FIG. 4 is an enlarged view of the utility model at M in FIG. 3.

The attached drawings indicate the following:

in the figure: 10. a rotor knurling mechanism; 11. a mounting frame; 111. a left bracket; 112. a middle support plate; 113. a right bracket; 12. an upper hob cutter; 13. an upper hob drive assembly; 131. a drive motor; 132. a belt drive; 133. a rotating shaft; 134. a driving wheel; 135. a driven wheel; 136. a transmission belt; 137. a speed reducer; 138. a turntable; 139. a rocker arm; 141. a first link; 142. a connecting shaft; 143. a second link; 145. an upper tool apron; 15. a lower hob assembly; 151. a lower tool apron; 152. a lower hob; 16. a rotor drive assembly; 161. a supporting seat; 162. a first support plate; 163. a proximity sensor; 164. a first cylinder; 165. a second support plate; 166. a second cylinder; 167. a transverse slide carriage; 168. a material seat; 17. a first adjusting screw; 18. a second height adjustment assembly; 181. a second adjusting screw; 182. a second sliding seat; 183. and (4) a groove.

Detailed Description

As shown in fig. 1 to 4, a rotor knurling mechanism 10 of the present invention comprises a mounting frame 11, an upper hob 12, an upper hob driving assembly 13, a lower hob 152 assembly 15 and a rotor driving assembly 16; the upper hob driving assembly 13 comprises a driving motor 131, a belt transmission device 132, a speed reducer 137, a rotating disc 138, a first connecting rod 141 and a second connecting rod 143, the speed reducer 137 is mounted on the mounting frame 11, an output end of the belt transmission device 132 is connected with an input end of the speed reducer 137, an output end of the speed reducer 137 is connected with the rotating disc 138, a swing arm 139 is fixedly arranged at a position of the rotating disc 138 away from the axis center, the swing arm 139 is hinged with the first connecting rod 141, the first connecting rod 141 is hinged with the second connecting rod 143, one end of the first connecting rod 141 away from the swing arm 139 is hinged with a connecting shaft 142, and the second connecting rod 143 is hinged with the connecting shaft 142; the upper hob 12 is transversely movably mounted on the mounting frame 11, the upper hob 12 is fixedly connected with a second connecting rod 143, the second connecting rod 143 is transversely movably located on the mounting frame 11, the belt transmission device 132 drives the turntable 138 to rotate through the speed reducer 137, and the turntable 138 rotates to drive the second connecting rod 143 and the upper hob 12 to transversely move; the lower hob 152 assembly 15 comprises a lower hob base 151 and a lower hob 152 fixedly mounted on the lower hob base 151, and the upper hob 12 is transversely movably positioned above the lower hob 152; the rotor driving assembly 16 includes a supporting seat 161, a first supporting plate 162, a first air cylinder 164, a second supporting plate 165, a second air cylinder 166 and a transverse sliding seat 167 for placing the rotor worm, the supporting seat 161 is movably located on the lower tool apron 151 up and down, the first supporting plate 162 and the second supporting plate 165 are respectively vertically installed on two sides of the supporting seat 161, the first air cylinder 164 is installed on one side of the supporting seat 161 close to the first supporting plate 162, the second air cylinder 166 is installed on one side of the supporting seat 161 close to the second supporting plate 165, the transverse sliding seat 167 is transversely slidably located on the supporting seat, an axial end of the first air cylinder 164 can drive the transverse sliding seat 167 to transversely move to abut against the second supporting plate 165 for knurling against the transverse sliding seat 167, an axial end of the second air cylinder 166 can drive the transverse sliding seat 167 to abut against the first supporting plate 162 for pushing the knurled rotor to the other side to prepare for discharging, the rotor shaft end on the transverse sliding base 167 is positioned between the upper hob 12 and the lower hob 152 in a rolling manner, and the lower hob 152 transversely moves to pass through the lower hob 152; the transverse sliding base 167 is provided with a material seat 168 for placing the rotor worm, and the material seat 168 moves along with the movement of the transverse sliding base 167; specifically, the first cylinder 164 drives the transverse sliding base 167 to move leftwards, the transverse sliding base 167 is tightly abutted to the second support plate 165, a rotor to be knurled is placed on the transverse sliding base 167, the shaft end of the rotor to be knurled is positioned between the upper hob 12 and the lower hob 152 in a rolling mode, the belt transmission device 132 drives the turntable 138 to rotate through the reducer 137, the turntable 138 drives the second connecting rod 143 and the upper hob 12 to move transversely, the upper hob 12 moves transversely from the right side of the lower hob 152 to the left side of the upper hob 12, the shaft end of the rotor rolls in the transverse moving process of the lower hob 152, knurling is performed on the shaft end of the rotor, and the second cylinder 166 drives the first support plate 162 on which the knurled rotor is placed to move transversely to the right side to perform discharging transfer; the upper hob driving assembly 13 drives the upper hob 12 to transversely move relative to the lower hob 152, so that knurling operation on the shaft end of the rotor is formed, the whole structure is simple and compact, and automation is achieved.

The knurling feeding mechanism 10 further comprises a first adjusting screw 17 for adjusting the height of the lower tool apron 151 and a second height adjusting assembly 18 for adjusting the height of the rotor driving assembly 16, the lower tool apron 151 can be vertically movably positioned on the mounting frame 11, the first adjusting screw 17 is connected with the lower tool apron 151, and the first adjusting screw 17 drives the lower tool apron 151 to vertically move; the second height adjusting assembly 18 includes a second adjusting screw 181 and a second sliding seat 182, the second sliding seat 182 is provided with a groove 183 for the second adjusting screw 181 to pass through, the second sliding seat 182 can move up and down relative to the second adjusting screw 181, the second adjusting screw 181 passes through the groove 183 to be connected with the lower tool apron 151, and the second adjusting screw 181 fixes or releases the second sliding seat 182 relative to the lower tool apron 151; specifically, when the first adjusting screw 17 is adjusted, the first sliding seat, the lower tool block 151, the rotor driving assembly 16 and the second height adjusting assembly 18 all move vertically along with the first adjusting screw 17, and when the first adjusting screw 17 is adjusted in place, the second adjusting screw 181 is adjusted; when the second adjusting screw 181 is loosened, the groove 183 of the second sliding seat 182 can move up and down relative to the second adjusting screw 181, so as to adjust the height between the second sliding seat 182 and the rotor driving component 16 on the upper surface of the second sliding seat 182 relative to the lower tool apron 151, and after the height is adjusted to a certain position, the second adjusting screw 181 is screwed to fix the position of the second sliding seat 182; the height of the rotor driving assembly 16 relative to the lower tool base 151 is adjusted through the second height adjusting assembly 18, the height of the lower tool base 151 and the rotor driving assembly 16 is adjusted through the first height adjusting assembly, so that the distance between the upper hob 12 and the lower hob 152 can be adjusted to adapt to rotor shafts of different models, and the application range is wide.

The belt transmission device 132 comprises a rotating shaft 133, a driving wheel 134, a driven wheel 135 and a transmission belt 136, the driving wheel 134 is connected to the shaft end of the driving motor 131, one end of the rotating shaft 133 is connected to the driven wheel 135, the other end of the rotating shaft 133 is connected to the input end of a speed reducer 137, the transmission belt 136 is sleeved between the driving wheel 134 and the driven wheel 135, and the driving motor 131 drives the rotating shaft 133 to rotate through the driving wheel 134, the transmission belt 136 and the driven wheel 135; the driving motor 131 drives the driving wheel 134 to rotate, the driven wheel 135 and the driving wheel 134 synchronously rotate through the transmission belt 136, and the rotating shaft 133 rotates along with the rotation of the driven wheel 135; the reducer 137 can increase the torque to increase the force, and the force is transmitted to the upper hob 12 through the second connecting rod 143, so that the force of the lateral movement of the upper hob 12 becomes larger, and the knurling operation is more facilitated.

An upper tool holder 145 for connecting the upper hob 12 is fixedly arranged at the lower side of the second connecting rod 143, the upper hob 12 is connected to the front side of the upper tool holder 145, a transverse guide rail for allowing the upper tool holder 145 to move transversely is arranged on the mounting frame 11, a sliding slot is arranged at the rear side of the upper tool holder 145, the sliding slot is matched with the transverse guide rail, and the upper tool holder 145 and the upper hob 12 can move transversely on the transverse guide rail through the sliding slot; so that the upper tool apron 145 with the upper hob 12 moves more smoothly on the transverse guide rail on the mounting frame 11.

The mounting bracket 11 includes a left bracket 111, a middle support plate 112 and a right bracket 113, the second link 143 is mounted through the left bracket 111, the second link 143 and the upper roller cutter 12 are movable in the lateral direction of the left bracket 111, and the reducer 137 is mounted on the right bracket 113.

The first support plate 162 and the second support plate 165 are both provided with a proximity sensor 163 for sensing the arrival of the transverse slide 167; a microprocessor (as a control module, a single-chip processor, not shown) is also provided in the mechanism and can collect the approach signal of the lateral sliding seat 167 (the position when the approach is sensed by the approach sensor 163, not shown).

The use method and the principle of the rotor knurling mechanism are as follows:

first cylinder drive horizontal slide removes left, support horizontal slide tightly on the second extension board, place the rotor that remains the knurling on the horizontal slide, but the rotor axle head roll formula of treating the knurling is located between hobbing cutter and the lower hobbing cutter, belt drive passes through reduction gear drive carousel and rotates, the carousel rotates and drives second connecting rod and last hobbing cutter lateral shifting, it follows the left side of the right side lateral shifting of lower hobbing cutter to go up the hobbing cutter to reach the hobbing cutter, the axle head of rotor rolls under the hobbing cutter lateral shifting in-process, carry out the knurling processing with the rotor axle head, the second cylinder drive is placed the first extension board department on rotor lateral shifting to the right side that has knurled and is carried out the ejection of compact and shift.

The design of the utility model is characterized in that the upper hob is driven by the upper hob driving component to transversely move relative to the lower hob so as to form knurling operation on the shaft end of the rotor, the whole structure is simple and compact, and the knurling operation is automatically completed; adjust the rotor drive assembly through second altitude mixture control subassembly and for the height of lower blade holder, adjust down the holistic height of blade holder and rotor drive assembly through first altitude mixture control subassembly to with last hobbing cutter and down the distance between the hobbing cutter can be adjusted, with the rotor shaft that adapts to different models, the range of application is wide.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims (8)

1. The rotor knurling mechanism is characterized by comprising a mounting frame, an upper hob driving assembly, a lower hob assembly and a rotor driving assembly; the upper hob driving assembly comprises a driving motor, a belt transmission device, a speed reducer, a rotary table, a first connecting rod and a second connecting rod, wherein the speed reducer is installed on the installation frame, the output end of the belt transmission device is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the rotary table, a rocker arm is tightly arranged at a position, far away from an axis center, of the rotary table, the rocker arm is hinged with the first connecting rod, the first connecting rod is hinged with the second connecting rod, the upper hob can be transversely movably installed on the installation frame, the upper hob is fixedly connected with the second connecting rod, the second connecting rod can be transversely movably positioned on the installation frame, the belt transmission device drives the rotary table to rotate through the speed reducer, and the rotary table rotates to drive the second connecting rod and the upper hob to transversely move; the lower hob assembly comprises a lower hob base and a lower hob which is fixedly arranged on the lower hob base, and the upper hob can be transversely and movably positioned above the lower hob; the rotor driving component comprises a supporting seat, a first supporting plate, a first cylinder, a second supporting plate, a second cylinder and a transverse sliding seat for placing a rotor worm, wherein the supporting seat can be vertically movably positioned on a lower cutter seat, the first supporting plate and the second supporting plate are respectively vertically arranged on two sides of the supporting seat, the first cylinder is arranged on one side, close to the first supporting plate, of the supporting seat, the second cylinder is arranged on one side, close to the second supporting plate, of the supporting seat, the transverse sliding seat is transversely and slidably positioned on the supporting seat, the shaft end of the first cylinder can drive the transverse sliding seat to transversely move to abut against the second supporting plate for abutting against the transverse sliding seat to perform knurling, the shaft end of the second cylinder can drive the transverse sliding seat to transversely move to abut against the first supporting plate for pushing the knurled rotor to the other side to prepare discharging, and the shaft end of the rotor on the transverse sliding seat can be positioned between an upper hob and a lower hob in a rolling manner, the lower hob transversely moves to penetrate through the lower hob.

2. The rotor knurling mechanism of claim 1, wherein: the knurling mechanism further comprises a first adjusting screw rod for adjusting the height of the lower tool apron and a second height adjusting assembly for adjusting the height of the rotor driving assembly, the lower tool apron can be vertically movably positioned on the mounting frame, the first adjusting screw rod is connected with the lower tool apron, and the first adjusting screw rod drives the lower tool apron to vertically move; the second height adjusting assembly comprises a second adjusting screw and a second sliding seat, a groove for the second adjusting screw to penetrate through is formed in the second sliding seat, the second sliding seat can move up and down relative to the second adjusting screw, the second adjusting screw penetrates through the groove and is connected with the lower tool apron, and the second adjusting screw enables the second sliding seat to be fixed or loosened relative to the lower tool apron.

3. The rotor knurling mechanism of claim 1, wherein: the belt transmission device comprises a rotating shaft, a driving wheel, a driven wheel and a transmission belt, the driving wheel is connected to the shaft end of the driving motor, one end of the rotating shaft is connected with the driven wheel, the other end of the rotating shaft is connected with the input end of the speed reducer, the transmission belt is sleeved on the driving wheel and the driven wheel, and the driving motor drives the rotating shaft to rotate through the driving wheel, the transmission belt and the driven wheel.

4. The rotor knurling mechanism of claim 1, wherein: the first connecting rod is provided with a connecting shaft in a hinged mode at one end far away from the rocker arm, and the second connecting rod is hinged to the connecting shaft.

5. The rotor knurling mechanism of claim 1, wherein: the utility model discloses a hobbing cutter, including first connecting rod, second connecting rod, last hobbing cutter, mounting bracket, second connecting rod downside fastening is provided with and is used for connecting the last blade holder of last hobbing cutter, should go up the hobbing cutter and connect the front side in last blade holder, be provided with the transverse guide who is used for supplying blade holder lateral shifting on the mounting bracket, the rear side of going up the blade holder is provided with the spout, and this spout and transverse guide phase-match, this last blade holder and last hobbing cutter pass through the spout and can lateral shifting on transverse guide.

6. The rotor knurling mechanism of claim 1, wherein: the mounting bracket comprises a left support, a middle support plate and a right support, the second connecting rod is installed on the left support in a penetrating mode, the second connecting rod and the upper hob can transversely move on the left support, and the speed reducer is installed on the right support.

7. The rotor knurling mechanism of claim 1, wherein: and the first support plate and the second support plate are both provided with a proximity sensor for sensing the arrival of the transverse sliding seat.

8. The rotor knurling mechanism of claim 1, wherein: and a material seat for placing the rotor worm is arranged on the transverse sliding seat, and the material seat moves along with the movement of the transverse sliding seat.

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