Actuator worm press-fitting equipment based on precise pressure control

Abstract

The utility model relates to the technical field of press fitting, and discloses actuator worm press fitting equipment based on precise pressure control, which comprises a bottom plate, a stamping cylinder is fixedly mounted at one end of the upper side of the bottom plate, a limiting structure is fixedly mounted at the other end of the upper side of the bottom plate, and a platform is mounted on the upper side of the bottom plate through a protection structure. A containing base and an anti-disengaging mechanism are fixedly installed on the upper side of the platform, the anti-disengaging mechanism is located on the rear side of the containing base, the containing base is located between the limiting structure and the punching cylinder, and a monitoring assembly is installed between the bottom plate and the platform. Due to the arrangement of the protection structure, the platform can be allowed to slip when the press-fitting resistance is too large to cause jamming, the motor and the worm are prevented from being damaged due to excessive stress, and components are effectively protected; the efficiency of press-fitting operation can be guaranteed through tight coordination action, parts can be taken out in time when press-fitting is difficult, unnecessary waste is reduced, and the defective rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of press-fitting technology, specifically to an actuator worm gear press-fitting device based on precise pressure control. Background Technology

[0002] The worm gear press-fitting process in the actuator involves placing the motor and worm gear on a holding base using a robotic arm for adsorption and transfer. A clamp is used for upper-side limiting to prevent the motor and worm gear from shaking during press-fitting. Then, a punch press located on the worm gear side applies axial pressure, thereby interference-fitting the worm gear to the motor output end. After press-fitting, the pressure is maintained for a period of time to ensure a secure connection between the worm gear and the motor output end. Finally, the robotic arm adsorbs and transfers the worm gear onto a conveyor belt, where it is then shipped out of the workstation.

[0003] During the process, the pressing force and speed are constant after debugging. However, due to the existence of dimensional and shape errors in production, if the resistance of the interference fit between the motor output end and the worm is too large, it will cause deformation of the motor rotor and worm, thereby damaging the components and causing unnecessary waste.

[0004] Therefore, in order to protect the components and facilitate subsequent error correction and reuse, an actuator worm gear press-fitting device based on precise pressure control is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an actuator worm gear press-fitting device based on precise pressure control, which can prevent component damage caused by jamming during insertion, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A worm gear press-fitting device based on precision pressure control includes a base plate. A stamping cylinder is fixedly installed at one end of the upper side of the base plate, and a limiting structure is fixedly installed at the other end of the upper side of the base plate. A platform is installed on the upper side of the base plate through a protective structure. A holding seat and an anti-detachment mechanism are fixedly installed on the upper side of the platform, and the anti-detachment mechanism is located behind the holding seat. The holding seat is located between the limiting structure and the stamping cylinder. A monitoring component is installed between the base plate and the platform.

[0008] Specifically, the protective structure includes a first cylinder and dovetail guide rails. A pair of dovetail grooves are provided on the top of the base plate, and the direction of the dovetail grooves is the same as the stamping direction of the stamping cylinder. A pair of dovetail guide rails are fixedly installed on the lower side of the platform, and the dovetail guide rails are slidably installed in the dovetail grooves. A first cylinder is fixedly installed on the upper side of the platform, and the platform has a through hole for the output end of the first cylinder to pass through.

[0009] Further, the output end of the first cylinder is fixedly installed with a friction seat, which is in abutment with the bottom of the dovetail groove in use.

[0010] Specifically, the monitoring assembly comprises a second cylinder and a potentiometer type displacement sensor, the upper side of the platform is fixedly installed with the second cylinder, and the second cylinder is located at the front side of the limiting structure, and the potentiometer type displacement sensor is fixedly installed between the output end of the second cylinder and the platform.

[0011] Specifically, the containing seat comprises a seat body fixedly installed on the upper side of the platform and a support frame, a symbol plate is fixedly installed on the side of the seat body close to the limiting structure, a support plate is fixedly installed on the side of the seat body away from the limiting structure, the support frame is located between the support plate and the stamping cylinder, and the top of the seat body and the symbol plate is provided with an arc-shaped groove for placing the motor, and the top of the support plate and the support frame is provided with a V-shaped groove for placing the worm.

[0012] Specifically, the limiting structure comprises a stepped seat and a support arm, one end of the support arm is fixedly assembled with the bottom plate, and the other end of the support arm is fixedly installed with the stepped seat, and the shape of the stepped seat is matched with the symbol plate.

[0013] Specifically, the anti-falling mechanism comprises a resisting block, a swing arm and a rotary down-pressing cylinder, the rotary down-pressing cylinder is fixedly assembled with the platform, one end of the swing arm is fixedly installed on the output end of the rotary down-pressing cylinder, and the other end of the swing arm is fixedly installed with a pair of resisting blocks.

[0014] Specifically, the output end of the stamping cylinder is installed with a top shaft.

[0015] Specifically, the upper side of the bottom plate and the stamping cylinder is fixedly installed with a camera through a support rod.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The setting of the anti-falling mechanism and the containing seat can ensure the position stability of the motor and the worm in the stamping process, guarantee the coaxiality, the setting of the protection structure can allow the platform to slip when the press-fitting resistance is too large and a jam occurs, avoid the damage of the motor and the worm due to excessive stress, effectively protect the components, the monitoring assembly can accurately collect the platform displacement information and stop the stamping operation in time, and the platform is convenient to reset.

[0018] The close cooperation can ensure the efficiency of the press-fitting operation, the components can be taken out in time when the press-fitting is difficult, unnecessary waste is reduced, and the rate of defective products is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic top view of the utility model;

[0020] Figure 2 For Figure 1 Structure schematic sectional view of the protection structure at A-A direction;

[0021] Figure 3 For Figure 1 Structure schematic sectional view of the containing seat at B-B direction.

[0022] In the figure: 1 bottom plate, 2 top shaft, 3 platform, 4 anti-off mechanism, 41 stop block, 42 swing arm, 43 rotary down-pressing cylinder, 5 limiting structure, 51 step seat, 52 support arm, 6 monitoring assembly, 61 second cylinder, 62 potentiometer type displacement sensor, 7 containing seat, 71 symbol plate, 72 seat body, 73 support plate, 74 support frame, 8 protection structure, 81 first cylinder, 82 dovetail groove, 83 friction seat, 84 dovetail guide rail, 9 camera, 10 stamping cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment content:

[0025] Please refer to Figure 1 The present application provides an actuator worm press-fitting equipment based on precise pressure control, which comprises a bottom plate 1, the bottom plate 1 is a rectangular steel plate, and sink holes are formed along the periphery as a mounting base; a stamping cylinder 10 is fixedly installed at one end of the upper side of the bottom plate 1, the stamping cylinder 10 is horizontally arranged, and the stamping end is arranged to the left, for applying pressure on the worm.

[0026] A limiting structure 5 is fixedly installed at the other end of the upper side of the bottom plate 1, and a platform 3 is installed on the upper side of the bottom plate 1 through a protection structure 8, the upper side of the platform 3 is fixedly installed with a containing seat 7 and an anti-off mechanism 4, and the anti-off mechanism 4 is located at the rear side of the containing seat 7, the containing seat 7 is located between the limiting structure 5 and the stamping cylinder 10, and a monitoring assembly 6 is installed between the bottom plate 1 and the platform 3.

[0027] The containing seat 7 is used for containing the motor and the worm to be assembled, the anti-off mechanism 4 is used for pressing the placed motor and worm, to avoid movement during stamping, and to ensure the coaxiality of the motor output shaft and the worm.

[0028] The protection structure 8 can fix the platform 3 in normal use, and can allow the platform 3 to slide to the left when the motor output end and the worm are interference assembled and jammed, the limiting structure 5 supports and protects the containing seat 7 in the limit position, so as to avoid damage of parts of the pressing equipment itself, and the monitoring assembly 6 can accurately obtain the displacement distance of the platform 3, and provide data for subsequent operation.

[0029] The above structure can accurately apply pressure during the worm pressing process, and has a safety protection effect, so as to avoid damage of the motor, the worm and the parts of the pressing equipment caused by continued pressure after the pressing is jammed.

[0030] Please refer to Figure 2 , the structure of the protection structure 8:

[0031] The protection structure 8 includes a first cylinder 81 and a dovetail guide rail 84, a pair of dovetail grooves 82 are formed in the top of the bottom plate 1, and the setting direction of the dovetail grooves 82 is the same as the punching direction of the punching cylinder 10, a pair of dovetail guide rails 84 are fixedly installed on the lower side of the platform 3, the dovetail guide rails 84 are respectively slidably installed in the dovetail grooves 82, the first cylinder 81 is fixedly installed on the upper side of the platform 3, the first cylinder 81 is vertically arranged, and the platform 3 is provided with a through hole for penetrating the output end of the first cylinder 81.

[0032] The platform 3 has the ability to translate left and right along the horizontal direction through the cooperation of the dovetail guide rail 84 and the dovetail groove 82, and the output end of the first cylinder 81 downwardly extending can increase the friction force until the fixation of the platform 3 is completed, so as to resist the leftward punching force of the punching cylinder 10 indirectly acting on the platform 3.

[0033] The output end of the first cylinder 81 is fixedly installed with a friction seat 83, the friction seat 83 is in the shape of a stepped shaft, the lower end has a larger area, and the friction seat 83 abuts against the bottom of the dovetail groove 82 during use, so as to ensure the friction force after abutting.

[0034] Please refer to Figure 1 , the structure of the monitoring assembly 6:

[0035] The monitoring assembly 6 includes a second cylinder 61 and a potentiometer type displacement sensor 62, the second cylinder 61 is fixedly installed on the upper side of the platform 3 and located at the front side of the limiting structure 5, the second cylinder 61 is horizontally arranged and the output end is arranged to the right, and the potentiometer type displacement sensor 62 is fixedly installed between the output end of the second cylinder 61 and the platform 3.

[0036] When the platform 3 has a skid displacement to the left, the potentiometer displacement sensor 62 can collect displacement information in time and transmit it to the industrial computer to stop the stamping work and take out the motor and the worm; when resetting, the first cylinder 81 first lifts the friction seat 83 upward, the second cylinder 61 resets the platform 3 to the right, and then the first cylinder 81 makes the friction seat 83 abut against the bottom of the dovetail groove 82, and the second cylinder 61 is retracted to reset, at this time the sliding contact rod of the potentiometer displacement sensor 62 is also pulled out to reset, and the next round of press fitting work can be performed.

[0037] Please refer to Figure 3 , the structure of the containing seat 7:

[0038] The containing seat 7 comprises a seat body 72 fixedly installed on the upper side of the platform 3 and a support frame 74, a symbol-shaped plate 71 is fixedly installed on the side of the seat body 72 close to the limiting structure 5, a supporting plate 73 is fixedly installed on the side of the seat body 72 away from the limiting structure 5, and the support frame 74 is located between the supporting plate 73 and the stamping cylinder 10. The top of the seat body 72 and the top of the symbol-shaped plate 71 are both provided with an arc-shaped recess for placing the motor, and the top of the supporting plate 73 and the top of the support frame 74 are both provided with a V-shaped groove for placing the worm.

[0039] The arc-shaped recesses on the seat body 72 and the symbol-shaped plate 71 are adapted to the shape of the motor and can completely fit after being placed, while the V-shaped grooves on the supporting plate 73 and the support frame 74 are used for placing the screw rod to make the screw rod coaxial with the motor. In addition, the symbol-shaped plate 71 also has the function of supporting the motor and bearing the left stamping force of the stamping cylinder 10 indirectly acting on the motor.

[0040] Please refer to Figure 1 , the structure of the limiting structure 5:

[0041] The limiting structure 5 comprises a stepped seat 51 and a support arm 52, one end of the support arm 52 is fixedly assembled with the bottom plate 1, and the other end of the support arm 52 is fixedly installed with the stepped seat 51, and the shape of the stepped seat 51 is adapted to the symbol-shaped plate 71; when the platform 3 moves to the left to the limit position, the stepped seat 51 can abut against the symbol-shaped plate 71 to protect the containing seat 7 and the protection structure 8.

[0042] Please refer to Figure 1 , the structure of the anti-dropping mechanism 4:

[0043] The anti-dropping mechanism 4 comprises a resisting block 41, a swing arm 42 and a rotary down pressure cylinder 43, the rotary down pressure cylinder 43 is fixedly assembled with the platform 3, one end of the swing arm 42 is fixedly installed at the output end of the rotary down pressure cylinder 43, and the other end of the swing arm 42 is fixedly installed with a pair of resisting blocks 41, and the material of the resisting block 41 is preferably plastic.

[0044] The rotary down-pressing cylinder 43 is used for lifting and swinging the swing arm 42, so as to complete the standby and pressing two working states, when standby, the swing arm 42 is lifted and located at the rear side of the containing seat 7, and does not interfere with the placing process; when pressing, the swing arm 42 swings 90° and the pair of abutting blocks 41 are lowered, and respectively abut against the motor and the worm, and slightly apply the supporting pressure, but does not affect the axial movement of the worm during the stamping.

[0045] In addition, the output end of the stamping cylinder 10 is provided with the top shaft 2 through the flange plate and the bolt connection mode, which is convenient for the installation and disassembly of the top shaft 2, and the top shaft 2 is made of high-hardness alloy steel material to meet the needs of the stamping operation.

[0046] The bottom plate 1 and the upper side of the stamping cylinder 10 are both fixedly provided with the camera 9 through the supporting rod; the camera 9 on the bottom plate 1 faces the motor, and is used for monitoring the placing and pressing process of the motor, and the camera 9 on the stamping cylinder 10 faces the top shaft 2, and is used for monitoring the stamping process.

[0047] Description of the existing components:

[0048] The stamping cylinder 10 is an existing component with a cylinder body, a piston and a stamping end, and the piston is driven to move by compressed air to realize the extension and retraction of the stamping end.

[0049] The potentiometer type displacement sensor 62 is an existing component with a wire-wound resistor, a sliding contact rod and a shell, and the sliding contact rod moves with the platform 3 to change the contact position of the wire-wound resistor, so as to accurately measure the displacement.

[0050] The rotary down-pressing cylinder 43 is an existing component based on the structure of the linear cylinder, and the guide groove and the sliding block are added to realize the double actions of rotation and lifting of the output end.

[0051] The electric components are connected to the industrial computer of the process through the electric connection mode, the industrial computer can centrally control each electric component, realizes the collaborative control of the equipment and the man-machine interaction function.

[0052] Working principle of the embodiment:

[0053] Firstly, the motor is placed in the arc-shaped groove of the containing seat 7 through the mechanical arm adsorption transfer, the worm is placed in the corresponding V-shaped groove, and the motor output shaft is coaxial with the worm; then, the rotary down-pressing cylinder 43 of the anti-disengagement mechanism 4 is started, the swing arm 42 is swung and lowered, the abutting block 41 abuts against the motor and the worm respectively, and the motor and the worm are prevented from moving during the stamping process.

[0054] Then, the punch cylinder 10 starts, the top shaft 2 of its output end applies axial pressure to the worm, and the pressing operation starts; during the pressing process, if the resistance is too large due to size or shape errors, the first cylinder 81 of the protection structure 8 will slip the friction seat 83 from the bottom of the dovetail groove 82 due to excessive pressure, allowing the platform 3 to move to the left, avoiding damage to the motor and worm due to excessive stress.

[0055] At the same time, the potentiometer displacement sensor 62 of the monitoring assembly 6 collects the displacement information of the platform 3 in real time and transmits it to the industrial computer, and stops the pressing operation as soon as the displacement occurs.

[0056] When resetting is needed, the first cylinder 81 lifts the friction seat 83, the second cylinder 61 resets the platform 3 to the right, and then the first cylinder 81 again makes the friction seat 83 abut against the bottom of the dovetail groove 82, and the second cylinder 61 is retracted to reset, at this time the sliding contact rod of the potentiometer displacement sensor 62 is also pulled out to reset, and after the initial state of the equipment is restored, the next pressing operation can be performed.

[0057] During the whole process, the camera 9 monitors the motor placement, pressing and pressing process to ensure accurate operation.

[0058] The removed motor and worm are checked and repaired after disassembly, and can be pressed again to reduce the rate of defective products.

[0059] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0060] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An actuator worm press-fit device based on precise pressure control, characterized in that: Includes a base plate (1), a stamping cylinder (10) is fixedly installed on one end of the upper side of the base plate (1), a limiting structure (5) is fixedly installed on the other end of the upper side of the base plate (1), a platform (3) is installed on the upper side of the base plate (1) through a protective structure (8), a holding seat (7) and an anti-detachment mechanism (4) are fixedly installed on the upper side of the platform (3), and the anti-detachment mechanism (4) is located on the rear side of the holding seat (7). The holding seat (7) is located between the limiting structure (5) and the stamping cylinder (10), and a monitoring component (6) is installed between the base plate (1) and the platform (3).

2. The precision pressure control based executor worm press-fit equipment according to claim 1, wherein: The protective structure (8) includes a first cylinder (81) and a dovetail guide rail (84). A pair of dovetail grooves (82) are provided on the top of the base plate (1), and the setting direction of the dovetail grooves (82) is the same as the stamping direction of the stamping cylinder (10). A pair of dovetail guide rails (84) are fixedly installed on the lower side of the platform (3). The dovetail guide rails (84) are slidably installed in the dovetail grooves (82). A first cylinder (81) is fixedly installed on the upper side of the platform (3). The platform (3) has a through hole for passing through the output end of the first cylinder (81).

3. The precision pressure control based executor worm press-fit equipment according to claim 2, characterized in that: A friction seat (83) is fixedly installed at the output end of the first cylinder (81), and the friction seat (83) abuts against the bottom of the dovetail groove (82) during use.

4. The precision pressure control based executor worm press-fit equipment according to claim 1, wherein: The monitoring component (6) includes a second cylinder (61) and a potentiometer-type displacement sensor (62). The second cylinder (61) is fixedly installed on the upper side of the platform (3), and the second cylinder (61) is located in front of the limiting structure (5). The potentiometer-type displacement sensor (62) is fixedly installed between the output end of the second cylinder (61) and the platform (3).

5. The precision pressure control based executor worm press-fit equipment according to claim 1, wherein: The holding seat (7) includes a seat body (72) and a support frame (74) fixedly installed on the upper side of the platform (3). A shaped plate (71) is fixedly installed on the side of the seat body (72) near the limiting structure (5), and a support plate (73) is fixedly installed on the side of the seat body (72) away from the limiting structure (5). The support frame (74) is located between the support plate (73) and the stamping cylinder (10). The top of the seat body (72) and the shaped plate (71) are both provided with arc-shaped grooves for placing the motor, and the top of the support plate (73) and the support frame (74) are both provided with V-shaped grooves for placing the worm gear.

6. The precision pressure control based executor worm press-fit equipment according to claim 5, characterized in that: The limiting structure (5) includes a step seat (51) and a support arm (52). One end of the support arm (52) is fixedly assembled with the base plate (1), and the other end of the support arm (52) is fixedly installed with the step seat (51). The shape of the step seat (51) is adapted to the shape plate (71).

7. The precision pressure control based executor worm press-fit equipment according to claim 1, wherein: The anti-detachment mechanism (4) includes a stop block (41), a swing arm (42) and a rotary pressing cylinder (43). The rotary pressing cylinder (43) is fixedly assembled with the platform (3). One end of the swing arm (42) is fixedly installed at the output end of the rotary pressing cylinder (43), and a pair of stop blocks (41) are fixedly installed at the other end of the swing arm (42).

8. The precision pressure control based executor worm press-fit equipment according to claim 1, wherein: The output end of the stamping cylinder (10) is equipped with a top shaft (2).

9. The precision pressure control based executor worm press-fit equipment according to claim 1, wherein: The bottom plate (1) and the upper side of the stamping cylinder (10) are fixedly installed with a camera (9) through a support rod.

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