Centering press-fitting device based on XY compensation mechanism and control method of centering press-fitting device

Abstract

The invention relates to the field of mechanical tools, and discloses a centering press-fitting device based on an XY compensation mechanism and a control method thereof, and the centering press-fitting device comprises a first clamping unit and a second clamping unit; the first clamping unit comprises a first clamping air cylinder, a plane compensation module and a linear power module, the fixed end of the first clamping air cylinder is fixedly installed at the power output end of the plane compensation module, and the plane compensation module provides movement in the X direction and the Y direction for the first clamping air cylinder. The fixed end of the plane compensation module is fixedly installed at the power output end of the linear power module, and the linear power module drives the first clamping air cylinder to be close to or away from the second clamping unit. The second clamping unit comprises a second clamping air cylinder used for clamping a second workpiece. The centering press-fitting device can guarantee the assembling concentricity through immediate adjustment of the first clamping air cylinder in the clamping process, and therefore the problem that in the prior art, assembling equipment cannot actively compensate for the initial eccentric deviation of a workpiece is solved.

Description

Technical Field

[0001] This invention relates to the field of mechanical tooling technology, and in particular to a centering press-fitting device based on an XY compensation mechanism and its control method. Background Technology

[0002] In fields such as precision machinery manufacturing, automotive parts, aerospace, and electronic product assembly, the assembly and press-fitting of precision parts such as shafts, bearings, gears, and pins is a widely used key process.

[0003] The quality of the assembly process directly determines the final product's fitting accuracy, connection strength, operational stability, and overall reliability. An initial concentricity deviation is unavoidable between the parts to be installed (such as shafts) and the base parts (such as holes). This deviation may originate from the parts' own machining errors, positioning errors during assembly, or wear and cumulative errors of the tooling fixtures. When initial eccentricity exists, traditional rigid press-fitting processes face a series of serious problems, such as: sharp edge collisions and scratches occurring at the moment of contact due to eccentricity, damaging the mating surfaces of the parts, affecting the product's aesthetics, and potentially becoming stress concentration points; the presence of eccentricity causes the actual resistance during press-fitting to be much greater than the theoretical value, manifesting as sharp peaks or violent fluctuations in the pressure curve. This can not only damage expensive precision parts but also easily cause overload impacts on the press-fitting equipment itself. After forced insertion, residual stress will be generated inside the parts, causing deformation of the assembly, reducing dynamic balance performance, shortening service life, and even triggering premature failure.

[0004] To overcome these problems, the industry has developed some preliminary solutions, such as using high-precision servo presses and monitoring force and displacement for process quality control. However, most of these systems can only "monitor" defects rather than "prevent" them. They can alarm and stop the machine when the pressing force exceeds the limit, but they cannot proactively correct existing deviations at the beginning of pressing, which is a passive quality control approach.

[0005] In recent years, some pressure heads with primary floating compensation structures have emerged, allowing the pressure head to oscillate adaptively within a certain range. However, these structures often suffer from problems such as small compensation amount, slow response, insufficient rigidity, or inability to perform active and precise closed-loop control during the pressing process, resulting in limited and unstable compensation effects.

[0006] Therefore, developing a pressing device and intelligent control method that can actively, quickly, and accurately detect and compensate for initial eccentricity deviations before and during the pressing process, and achieve true "flexible centering," has become a key technical challenge that urgently needs to be overcome to improve the level of high-end equipment manufacturing. Summary of the Invention

[0007] The purpose of this invention is to provide a centering press-fitting device and its control method based on an XY compensation mechanism, which solves the problem that assembly equipment in the prior art cannot actively compensate for the initial eccentricity deviation of the workpiece.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows: In a first aspect, the present invention discloses a centering press fitting device based on an XY compensation mechanism, comprising a first clamping unit and a second clamping unit; The first clamping unit includes a first clamping cylinder, a planar compensation module, and a linear power module. The fixed end of the first clamping cylinder is fixedly installed on the power output end of the planar compensation module, and the planar compensation module provides the first clamping cylinder with movement along the X and Y directions. The fixed end of the planar compensation module is fixedly installed on the power output end of the linear power module, and the linear power module drives the first clamping cylinder to move closer to or away from the second clamping unit. The second clamping unit includes a second clamping cylinder for clamping the second workpiece.

[0009] As an optional solution, the second clamping unit further includes a rotation power module, the power output end of which drives the second clamping cylinder to rotate, and the clamping center of the second clamping cylinder is located on the rotation axis of the rotation power module.

[0010] As an optional solution, a control unit is also included, which comprises a console, a signal receiver, and a signal processor; The control console, under the operation of personnel, issues alignment signals, assembly signals, reset signals, and clamping signals; The signal input terminal of the signal receiver receives the signal emitted by the console, and the signal output terminal of the signal receiver is electrically connected to the signal input terminal of the signal processor. The signal output terminal of the signal processor is connected to the signal input terminals of the first clamping cylinder, the second clamping cylinder, the plane compensation module, the linear power module, and the rotational power module, respectively. The signal processor processes the signal received from the signal receiver into a control signal and transmits it through the signal output terminal of the signal processor.

[0011] As an optional solution, the control unit further includes an auxiliary alignment module, which includes a first photoelectric sensor, a second photoelectric sensor, and a signal transmission module; The signal output terminals of the first photoelectric sensor and the second photoelectric sensor are both electrically connected to the signal input terminal of the signal transmission module, and the signal output terminal of the signal transmission module is communicatively connected to the control console. The first photoelectric sensor is installed on the first clamping cylinder, and the second photoelectric sensor is installed on the second clamping cylinder. The first and second photoelectric sensors assist in monitoring the alignment status of the first and second clamping cylinders, and transmit the results to the control console through the signal transmission module to assist personnel in making judgments.

[0012] As an optional solution, the first clamping unit further includes a follow-up module, which includes a mounting plate and a rotating plate; The mounting plate is fixedly mounted on the fixed end of the first clamping cylinder; The rotating disk is rotatably mounted on the side of the mounting plate close to the first clamping cylinder. The rotation axis of the rotating disk is coaxial with the rotation axis of the second clamping cylinder, and the axis of the rotating disk passes through the clamping center of the first clamping cylinder.

[0013] As an optional solution, the second clamping unit further includes an anti-winding module, which is installed between the second clamping cylinder and the rotation power module. The anti-winding module constricts the air circuit of the second clamping cylinder and connects the air circuit to an external air circuit.

[0014] As an optional solution, both the first clamping cylinder and the second clamping cylinder are three-finger grippers.

[0015] Secondly, this invention discloses a control method for a centering press-fitting device based on an XY compensation mechanism, comprising: Step S1: Control the second clamping cylinder to clamp the second workpiece; Step S2: Control the linear power module to drive the first clamping cylinder to move towards the second clamping cylinder until the first clamping cylinder reaches the assembly position of the second workpiece; Step S3: Control the plane compensation module to unlock and allow the first clamping cylinder to move along the X and Y directions; Step S4: Control the first clamping cylinder to clamp the second workpiece until the clamping center of the first clamping cylinder is located on the axis of the second workpiece, and then control the plane compensation module to lock. Step S5: Control the first clamping cylinder to release the assembly circle of the second workpiece, and at the same time control the linear power module to drive the first clamping cylinder to reset, so as to complete the alignment process of the first clamping cylinder and the second clamping cylinder.

[0016] As an optional solution, after the alignment process is completed in step S5, the following method is also included: Step S6: Control the first clamping cylinder to clamp the first workpiece; Step S7: Control the linear power module to drive the first clamping cylinder to move towards the second clamping cylinder until the first workpiece and the second workpiece are assembled. In step S8, while controlling the first clamping cylinder to release the first workpiece, the second clamping cylinder releases the second workpiece to complete the assembly process.

[0017] As an optional solution, after the assembly process is completed in step S8, the following method is further included: Step S9: Control the linear power module to drive the first clamping cylinder to reset.

[0018] The present invention has the following unexpected beneficial effects: 1. The centering press-fitting device of the present invention is equipped with a first clamping unit and a second clamping unit to optimize the assembly process of the workpiece. The planar compensation module in the first clamping unit provides the first clamping cylinder with movement along the X and Y directions. The linear power module in the first clamping unit drives the first clamping cylinder to move closer to or away from the second clamping cylinder, so that the centering press-fitting device can adapt to the small differences in each assembly. It overcomes the rigidity deviation problem caused by traditional centering instruments relying on preset programs or fixed fixtures. The concentricity of the assembly is ensured by the real-time adjustment of the first clamping cylinder during the clamping process, thereby solving the problem that the assembly equipment in the prior art cannot actively compensate for the initial eccentricity deviation of the workpiece.

[0019] 2. The present invention also includes a follow-up module comprising a mounting plate and a rotating plate in the first clamping unit. The design of the rotating plate allows the first clamping cylinder to have a certain "follow-up" capability in the circumferential direction, so that during the assembly process, the two workpiece end faces on the first clamping cylinder and the second clamping cylinder will not cause "scratches" or "abrasions" to the workpiece surface due to forced relative rotation. Thus, the centering press-fitting mold described in the present invention can also be used for the assembly of precision workpieces with high surface finish requirements. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of the centering and pressing device according to an embodiment of the present invention; Figure 2 The centering and pressing device of this embodiment of the invention is in Figure 1 A magnified view of a section at point A; Figure 3 This is an exploded view of the first clamping unit of the centering press-fitting device according to an embodiment of the present invention; Figure 4 This is an exploded view of the second clamping unit of the centering press-fitting device according to an embodiment of the present invention; Figure 5 This is a flowchart of the control unit of the centering and pressing device according to an embodiment of the present invention; In the figure, 1. First clamping unit; 101. First clamping cylinder; 102. Planar compensation module; 103. Linear power module; 104. Follower module; 1041. Rotary disk; 1042. Mounting disk; 1043. Needle roller bearing; 105. First mounting frame; 2. Second clamping unit; 201. Second clamping cylinder; 202. Rotational power module; 203. Anti-winding module; 204. Second mounting frame; 205. Coupling; 3. First workpiece; 4. Second workpiece. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0022] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] In the description of this invention, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In one embodiment, such as Figures 1 to 4 As shown, in a first aspect, the present invention provides a centering press-fitting device based on an XY compensation mechanism, comprising a first clamping unit 1 and a second clamping unit 2.

[0025] The first clamping unit 1 includes a first clamping cylinder 101, a planar compensation module 102, and a linear power module 103. The fixed end of the first clamping cylinder 101 is fixedly installed on the power output end of the planar compensation module 102, and the planar compensation module 102 provides the first clamping cylinder 101 with movement along the X and Y directions. The fixed end of the planar compensation module 102 is fixedly installed on the power output end of the linear power module 103, and the linear power module 103 drives the first clamping cylinder 101 to move closer to or away from the second clamping unit 2.

[0026] The planar compensation module 102, i.e. the XY compensation mechanism, is an existing product, such as the AGE-XY-063-P compensation module manufactured by SCHUNK. It is internally equipped with a compensation part for installing tools (the first clamping cylinder 101 in this application document), a universal joint (composed of a bearing frame and a bearing flange set in the mechanism) for giving the compensation part two degrees of rotational freedom, a control piston for controlling the pivoting torque of the compensation part (the external force on the compensation part must be greater than the pivoting torque generated by the control piston for the compensation part to move), a locking piston for locking the compensation part, and sensors for detecting the position status of the locking piston, the control piston, the compensation part, etc.

[0027] Therefore, during the alignment process of the first clamping cylinder 101 and the second clamping cylinder 201, the compensation part, as the power output end of the planar compensation module 102, is fixedly installed on the fixed end of the first clamping cylinder 101. After the compensation part is unlocked and placed in a soft floating state, the first clamping cylinder 101 moves closer to the second clamping cylinder 201 under the drive of the linear power module 103. During this process, the first clamping cylinder 101 gradually approaches the assembly circle on the second workpiece 4 clamped on the second clamping cylinder 201. After reaching the preset position, the first clamping cylinder 101 is activated to clamp the second workpiece 4. When the first clamping cylinder 101 and the second clamping cylinder 201 are not aligned, the second workpiece 4 does not align with the first clamping cylinder 101. The opposing forces caused by the grippers in different directions are transmitted to the compensation unit through the first gripping cylinder 101, which in turn causes the compensation unit to work and the first gripping cylinder 101 to move in the X and Y directions. This movement will also disappear automatically when the opposing forces disappear. The disappearance of the opposing forces means that the opposing forces caused by the second workpiece 4 on the grippers of the first gripping cylinder 101 in different directions are close to the same, which means that the first gripping cylinder 101 and the second gripping cylinder 201 have been aligned. The compensation unit is then re-locked to keep it in the holding angle state, and the first gripping cylinder 101 is controlled to release the second workpiece 4. Then the linear power module 103 drives the first gripping cylinder 101 to reset, thereby completing the alignment process of the first gripping cylinder 101 and the second gripping cylinder 201.

[0028] The linear power module 103 is not further limited here. The linear power module 103 includes a first mounting bracket 105 and a first cylinder. The first mounting bracket 105 is fixedly mounted on the telescopic end of the first cylinder. Since the fixed end of the planar compensation module 102 and the first clamping cylinder 101 are fixedly mounted on the power output end of the linear power module 103, the fixed end of the planar compensation module 102 and the first clamping cylinder 101 are both mounted on the first mounting bracket 105 and pulled by the first cylinder. At this time, the first mounting bracket 105 serves as the fixed fulcrum of the first clamping unit 1 and can be driven by the first cylinder to move closer to or away from the second clamping cylinder 201.

[0029] The specific structure of the first mounting bracket 105 is not further defined here; the first mounting bracket 105 is a standard part.

[0030] The second clamping unit 2 includes a second clamping cylinder 201 for clamping the second workpiece 4.

[0031] Based on this, the centering press fitting device described in this application includes a first clamping unit 1 and a second clamping unit 2. The linear power module 103 and the plane compensation module 102 in the first clamping unit 1 provide power to the first clamping cylinder 101 during alignment, so that the centering press fitting device can actively align and assemble the workpiece without manual intervention, thereby solving the problem that the assembly equipment in the prior art cannot actively compensate for the initial eccentricity deviation of the workpiece.

[0032] Furthermore, such as Figures 1 to 4 As shown, the second clamping unit 2 further includes a rotation power module 202. The power output end of the rotation power module 202 drives the second clamping cylinder 201 to rotate, and the clamping center of the second clamping cylinder 201 is located on the rotation axis of the rotation power module 202.

[0033] The rotation power module 202 is not further limited here. The rotation power module 202 includes a second mounting bracket 204 and a motor. The fixed end of the second clamping cylinder 201 and the fixed end of the motor are fixedly mounted on the second mounting bracket 204. The second mounting bracket 204 is provided with a clearance opening through which the motor shaft of the motor passes. At this time, the motor drives the second clamping cylinder 201 on the second mounting bracket 204 to rotate. The rotation axis of the second clamping cylinder 201 is the same as the axis of the motor shaft. Therefore, the axis of the second clamping cylinder 201 and the axis of the motor shaft are the same.

[0034] The motor shaft and the fixed end of the second clamping cylinder 201 can be assembled using a coupling 205.

[0035] The structure of the second mounting bracket 204 is not further defined here, and the second mounting bracket 204 is also a standard part.

[0036] The installation method of the first mounting bracket 105 and the second mounting bracket 204 is not further limited here. The first mounting bracket 105 and the second mounting bracket 204 serve as the fixed support points of the first clamping unit 1 and the second clamping unit 2, respectively, and can be fixedly installed on the same fixed base.

[0037] Furthermore, this embodiment, not shown in the accompanying drawings, also includes a control unit, which includes a console, a signal receiver, and a signal processor.

[0038] The control console, under the operation of personnel, issues alignment signals, assembly signals, reset signals, and clamping signals.

[0039] The signal input terminal of the signal receiver receives the signal emitted by the console, and the signal output terminal of the signal receiver is electrically connected to the signal input terminal of the signal processor.

[0040] The signal output terminal of the signal processor is connected to the signal input terminals of the first clamping cylinder 101, the second clamping cylinder 201, the plane compensation module 102, the linear power module 103, and the rotational power module 202, respectively. The signal processor processes the signal received from the signal receiver into a control signal and transmits it through the signal output terminal of the signal processor.

[0041] Furthermore, such as Figures 1 to 4 As shown, the first clamping unit 1 further includes a follow-up module 104, which includes a mounting plate 1042 and a rotating plate 1041.

[0042] The mounting plate 1042 is fixedly mounted on the fixed end of the first clamping cylinder 101.

[0043] The rotating disk 1041 is rotatably mounted on the side of the mounting disk 1042 near the first clamping cylinder 101. The rotation axis of the rotating disk 1041 is coaxial with the rotation axis of the second clamping cylinder 201, and the axis of the rotating disk 1041 passes through the clamping center of the first clamping cylinder 101.

[0044] To reduce rotational friction between the rotating disk 1041 and the mounting disk 1042, a needle roller bearing 1043 can be provided between the rotating disk 1041 and the mounting disk 1042. The rotating disk 1041 is located at the front end of the needle roller bearing 1043, and the mounting disk 1042 is located at the rear end of the needle roller bearing 1043.

[0045] The size of the rotating disk 1041 is adapted to the first workpiece 3 clamped on the first clamping cylinder 101. Therefore, after the first workpiece 3 partially contacts the second workpiece 4 clamped on the second clamping cylinder 201, the first clamping cylinder 101 releases its clamping. The rotating disk 1041, driven by the linear power module 103, abuts against the tail end of the first workpiece 3, so that the first workpiece 3 can continue to be assembled onto the second workpiece 4 while maintaining synchronous rotation with the second workpiece 4. Thus, the centering press-fitting mold described in this invention can also be applied to the assembly of precision workpieces with high surface finish requirements.

[0046] Furthermore, such as Figures 1 to 4 As shown, the second clamping unit 2 also includes an anti-winding module 203. The anti-winding module 203 is installed between the second clamping cylinder 201 and the rotation power module 202. The anti-winding module 203 constricts the air circuit of the second clamping cylinder 201 and connects the air circuit to an external air circuit.

[0047] The structure of the anti-winding module 203 is not further limited here. The anti-winding module 203 can be a common slip ring or a hollow rotary platform.

[0048] Furthermore, such as Figures 1 to 4 As shown, both the first clamping cylinder 101 and the second clamping cylinder 201 are three-finger grippers. The clamping center of the first clamping cylinder 101, the clamping center of the second clamping cylinder 201, the rotating disk 1041, and the motor shaft are concentric.

[0049] The following is in conjunction with the appendix Figure 5 The control block diagram in this paper describes a control method for a centering press-fitting device based on an XY compensation mechanism. The method includes: Step S1: Control the second clamping cylinder 201 to clamp the second workpiece 4.

[0050] Step S2: Control the linear power module 103 to drive the first clamping cylinder 101 to move towards the second clamping cylinder 201 until the first clamping cylinder 101 reaches the assembly position of the second workpiece 4.

[0051] Step S3: Control the plane compensation module 102 to unlock and allow the first clamping cylinder 101 to move along the X and Y directions.

[0052] Step S4: Control the first clamping cylinder 101 to clamp the second workpiece 4 until the clamping center of the first clamping cylinder 101 is located on the axis of the second workpiece 4, and then control the plane compensation module 102 to lock.

[0053] Step S5: Control the first clamping cylinder 101 to release the assembly circle of the second workpiece 4, and at the same time control the linear power module 103 to drive the first clamping cylinder 101 to reset, so as to complete the alignment process of the first clamping cylinder 101 and the second clamping cylinder 201.

[0054] Furthermore, after the alignment process is completed in step S5, the following steps are also included: Step S6: Control the first clamping cylinder 101 to clamp the first workpiece 3.

[0055] Step S7: Control the linear power module 103 to drive the first clamping cylinder 101 to move towards the second clamping cylinder 201 until the first workpiece 3 and the second workpiece 4 are assembled.

[0056] In step S8, while controlling the first clamping cylinder 101 to release the first workpiece 3, the second clamping cylinder 201 releases the second workpiece 4 to complete the assembly process.

[0057] Furthermore, after the assembly process is completed in step S8, the following steps are also included: Step S9: Control the linear power module 103 to drive the first clamping cylinder 101 to reset.

[0058] The workflow of this invention is as follows: The alignment process is initiated via a control console. First, the second clamping cylinder 201 is activated to clamp the second workpiece 4. Then, by reducing the pivoting torque of the control piston within the plane compensation module 102, the first clamping cylinder 101 is unlocked and can move in the X and Y directions. The linear power module 103 is activated, driving the first clamping cylinder 101 to move towards the second clamping cylinder 201 until the first clamping cylinder 101 reaches the preset assembly position of the second workpiece 4, thus activating the first clamping... Cylinder 101 clamps the second workpiece 4 until the first clamping cylinder 101 and the second clamping cylinder 201 are fully aligned. Then, by increasing the pivoting torque of the control piston in the plane compensation module 102, the first clamping cylinder 101 maintains its current angle, the first clamping cylinder 101 releases the second workpiece 4, and the linear power module 103 is activated again to reset the first clamping cylinder 101, thus ending the entire alignment process. The assembly process is then initiated via the control console. First, the first workpiece 3 is clamped onto the first clamping cylinder 101, and then the... The linear power module 103 and the rotary power module 202 are used. The linear power module 103 drives the first clamping cylinder 101 to move towards the second clamping cylinder 201, while the rotary power module 202 drives the second clamping cylinder 201 to rotate at a constant speed. When the first workpiece 3 is inserted into the second workpiece 4 to a certain length, the first clamping cylinder 101 is controlled to release the first workpiece 3. At this time, the power output end of the linear power module 103 continues to advance (the length of the first workpiece 3 inserted into the second workpiece 4 ensures that it will not fall off). During this advancing process, the follower module 104 contacts the first workpiece 3. Its rotating disk 1041 abuts against the first workpiece 3, so that as the power output end of the linear power module continues to move towards the second clamping cylinder 201, it can continue to drive the first workpiece 3 to be assembled into the second workpiece 4. The linear power module 103 stops working after the first workpiece 3 is completely installed into the second workpiece 4. At this time, the rotating power module 202 stops working. Finally, while controlling the linear power module 103 to move in the opposite direction and reset, the second clamping cylinder 201 is opened and the assembled first workpiece 3 and second workpiece 4 are removed to complete the entire assembly process.

[0059] In summary, the planar compensation module 102 in the first clamping unit 1 of the centering press fitting device provides movement along the X and Y directions for the alignment of the first clamping cylinder 101. The linear power module 103 in the first clamping unit 1 drives the first clamping cylinder 101 to move closer to or away from the second clamping cylinder 201, so that the centering press fitting device can actively align and assemble the workpiece without manual intervention, thereby solving the problem that assembly equipment in the prior art cannot actively compensate for the initial eccentricity deviation of the workpiece.

[0060] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0061] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A centering press-fitting device based on an XY compensation mechanism, characterized by, The first clamping unit (1) and the second clamping unit (2) are included. The first clamping unit (1) includes a first clamping cylinder (101), a plane compensation module (102) and a linear power module (103), the fixed end of the first clamping cylinder (101) is fixedly installed on the power output end of the plane compensation module (102), and the plane compensation module (102) provides movement in X and Y directions for the first clamping cylinder (101), the fixed end of the plane compensation module (102) is fixedly installed on the power output end of the linear power module (103), and the linear power module (103) drives the first clamping cylinder (101) to move close to or away from the second clamping unit. The second clamping unit (2) includes a second clamping cylinder (201) for clamping a second workpiece (4).

2. The centering press fitting device according to claim 1, characterized in that The second clamping unit (2) further includes a rotating power module (202), the power output end of the rotating power module (202) drives the second clamping cylinder (201) to rotate, and the clamping center of the second clamping cylinder (201) is located on the rotation axis of the rotating power module (202).

3. The centering press fitting device according to claim 2, characterized in that Further including a control unit, the control unit includes a control console, a signal receiver and a signal processor. The control console sends alignment signals, assembly signals, reset signals and clamping signals under the control of personnel. The signal input end of the signal receiver receives the signals sent by the control console, and the signal output end of the signal receiver is electrically connected with the signal input end of the signal processor. The signal output end of the signal processor is in communication with the signal input ends of the first clamping cylinder (101), the second clamping cylinder (201), the plane compensation module (102), the linear power module (103) and the rotating power module (202) respectively, and the signal processor processes the signals transmitted by the signal receiver into control signals and transmits them out through the signal output end of the signal processor.

4. The center press device of claim 1, wherein The first clamping unit (1) further includes a follow-up module (104), the follow-up module (104) includes a mounting disc (1042) and a rotating disc (1041); The mounting disc (1042) is fixedly installed on the fixed end of the first clamping cylinder (101); The rotating disc (1041) is rotatably installed on one side of the mounting disc (1042) close to the first clamping cylinder (101), the rotation axis of the rotating disc (1041) is coaxial with the rotation axis of the second clamping cylinder (201), and the axis of the rotating disc (1041) penetrates the clamping center of the first clamping cylinder (101).

5. The center press device of claim 1, wherein The second clamping unit (2) further includes an anti-winding module (203), the anti-winding module (203) is installed between the second clamping cylinder (201) and the rotating power module (202), the anti-winding module (203) bundles the gas circuit of the second clamping cylinder (201) and connects the gas circuit with an external gas circuit.

6. The centering press-fit device of claim 1, wherein The first clamping cylinder (101) and the second clamping cylinder (201) are both three-fingered gas claws.

7. A control method of a centering press-fitting device based on an XY compensation mechanism, characterized by, It includes: Step S1: control the second clamping cylinder (201) to clamp the second workpiece (4); Step S2: control the linear power module (103) to drive the first clamping cylinder (101) to move towards the second clamping cylinder (201) until the first clamping cylinder (101) reaches the assembly position of the second workpiece (4); Step S3: control the planar compensation module (102) to unlock and allow the first clamping cylinder (101) to move in X and Y directions; Step S4: control the first clamping cylinder (101) to clamp the second workpiece (4) until the clamping center of the first clamping cylinder (101) is located on the axis of the second workpiece (4), and then control the planar compensation module (102) to lock; Step S5: control the first clamping cylinder (101) to release the assembly circle of the second workpiece (4), and at the same time control the linear power module (103) to drive the first clamping cylinder (101) to reset, so as to complete the alignment process of the first clamping cylinder (101) and the second clamping cylinder (201).

8. The control method according to claim 7, characterized by After the alignment process in step S5 is completed, it further includes: Step S6: control the first clamping cylinder (101) to clamp the first workpiece (3); Step S7: control the linear power module (103) to drive the first clamping cylinder (101) to move towards the second clamping cylinder (201) until the first workpiece (3) and the second workpiece (4) complete assembly; Step S8: control the first clamping cylinder (101) to release the first workpiece (3) at the same time, and the second clamping cylinder (201) releases the second workpiece (4) to complete the assembly process.

9. The control method according to claim 8, characterized by, After the assembly process in step S8 is completed, it further includes: Step S9: control the linear power module (103) to drive the first clamping cylinder (101) to reset.

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