Automatic assembling mechanism for handle and automatic assembling machine

Abstract

The invention belongs to the technical field of automatic handle assembling devices, and provides an automatic assembling mechanism and an automatic assembling machine for handles, and the automatic assembling mechanism comprises a bearing part, a first limiting part, a second limiting part, a first connecting part and a second connecting part, the press-fitting assembly is arranged on one side of the bearing piece and comprises a pushing piece movably arranged in the vertical direction, and a second limiting part movably abutting against the second torsion arm is arranged on the pushing piece; the clamping assembly is arranged on one side of the bearing piece and comprises a torsion spring clamping jaw which is movably arranged; the pressing assembly is arranged on one side of the bearing piece and comprises a pressing block movably arranged above the bearing piece. Compared with the prior art, through the arrangement of the bearing piece, the press-fitting assembly, the clamping assembly and the pressing assembly, automatic positioning, clamping, press-fitting and limiting of the torsional spring are achieved, and the problems that in the traditional manual torsional spring mounting process, direction errors, neglected mounting and the like are likely to occur are effectively solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic assembly devices for handles, and in particular relates to an automatic assembly mechanism and an automatic assembly machine for handles. Background Art

[0002] In existing handle assembly processes, especially those involving torsion spring installation, operators typically manually insert the torsion spring into the handle's mounting location. This process not only requires a certain level of operator proficiency but also relies on visual inspection and manual manipulation to ensure the correct installation direction and position of the torsion spring. Due to the elasticity and deformation characteristics of torsion springs, manual installation can easily lead to problems such as spring slippage, incorrect orientation, or missing installation, impacting subsequent assembly quality and efficiency.

[0003] After the torsion spring is installed, the handle must be moved to the next station for the pin installation. Prior to this, the pin installation area on the handle is typically sprayed with lubricant manually to reduce friction during the press-fit process and improve assembly quality. However, since this step is often manual, problems such as uneven spraying and missed spraying can occur, further impacting assembly consistency.

[0004] Furthermore, press-fitting the pin typically requires placing the handle on a dedicated fixture and using a press-fit device to press the pin into place. Because the aforementioned steps—installing the torsion spring, spraying lubrication, and pressing the pin—are all performed manually, the handle assembly process requires multiple transfers, increasing operator workload and extending production cycles. Furthermore, the need for separate work areas between each process consumes valuable factory space, hindering productivity and automation.

[0005] In summary, the existing handle assembly method has problems such as complicated operation, high labor intensity, low production efficiency, unstable assembly quality and low space utilization. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an automatic assembly mechanism and an automatic assembly machine for a handle in view of the current status of the existing technology.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: to provide an automatic assembly mechanism for a handle, which is used to install a torsion spring into the handle. The torsion spring includes a body and a first torsion arm and a second torsion arm provided on the body. The extension direction of the first torsion arm is parallel to the axial direction of the body. The automatic assembly mechanism includes:

[0008] a receiving member for receiving the torsion spring to be assembled, wherein the receiving member is provided with a first limiting portion along the entry direction of the torsion spring, and when the torsion spring enters the receiving member, the first limiting portion movably abuts against the first torsion arm to provide a limit for the first torsion arm;

[0009] A press-fitting assembly is provided on one side of the receiving member, and includes a pushing member movably arranged in a vertical direction, the pushing member is used to push the torsion spring to a press-fitting position, and the pushing member is provided with a second limiting portion that movably abuts against the second torsion arm. When the torsion spring moves in the press-fitting direction, the second limiting portion abuts against the second torsion arm to provide a limit for the second torsion arm;

[0010] A clamping assembly is provided on one side of the receiving member and includes a movably arranged torsion spring clamping jaw, the torsion spring clamping jaw being used to extend into the body to grasp and release the torsion spring;

[0011] The pressing assembly is arranged on one side of the receiving member and includes a pressing block movably arranged above the receiving member; wherein,

[0012] When the torsion spring clamp extends into the body to grab the torsion spring, the pressing block moves in the horizontal direction and cooperates with the receiving member to form a limiting space for the torsion spring, which is used to prevent the torsion spring from deflecting on the receiving member.

[0013] In the above-mentioned automatic assembly mechanism for a handle, when the torsion spring is located on the receiving member, its central axis is perpendicular to its central axis when it is located on the pushing member.

[0014] In the above-mentioned automatic assembly mechanism for a handle, the receiving member includes:

[0015] A base, wherein the first limiting portion is a limiting groove provided on the base;

[0016] Two support portions extending outwardly along one end of the base, with a placement space for the body formed between the two support portions, the placement space being used to position the body, and at least one of the support portions being provided with a curved surface that matches the outer shape of the body;

[0017] A first sensor is provided on the base, wherein a sensing end of the first sensor passes through the base and is located in the limiting groove, and is used for sensing the torsion spring on the receiving member.

[0018] In the above-mentioned automatic assembly mechanism for a handle, a positioning groove is provided on the pushing member, and a magnet is provided on the bottom wall of the positioning groove. The magnet is used to adsorb the torsion spring placed in the positioning groove. The two opposite side walls of the positioning groove form a third limiting portion. The third limiting portion contacts and limits the two ends of the main body, and is used to provide lateral limitation for the torsion spring placed in the positioning groove.

[0019] In the above-mentioned automatic assembly mechanism for a handle, the press-fitting assembly includes: a first connecting frame; a first driving member, which is vertically arranged on the first connecting frame; a second driving member, which is vertically arranged at the output end of the first driving member, and the pushing member is arranged at the output end of the second driving member, and the first driving member is used to drive the second driving member to move in a vertical direction; a second sensor, which is arranged on the first connecting frame, and the sensing end of the second sensor is arranged toward the pushing member, and is used to sense the torsion spring on the pushing member;

[0020] The clamping assembly includes: a second connecting frame; a third driving member, which is vertically arranged on the second connecting frame; a fourth driving member, which is vertically arranged at the output end of the third driving member, and the third driving member is used to drive the fourth driving member to move in the vertical direction; a fifth driving member, which is horizontally arranged at the output end of the fourth driving member, and the fourth driving member is used to drive the fifth driving member to rotate; the torsion spring clamp is connected to the output end of the fifth driving member, and the fifth driving member is used to drive the torsion spring clamp to move in the horizontal direction;

[0021] The pressing assembly includes: a third connecting frame, which is arranged on one side of the receiving member; a sixth driving member, which is horizontally connected to the third connecting frame, and the pressing block is connected to the output end of the sixth driving member, and the sixth driving member is used to drive the pressing block to move closer to or away from the receiving member.

[0022] The present invention solves the above technical problems and further provides an automatic assembly machine, comprising: a machine platform, on which a positioning platform is provided, the positioning platform being used to position a handle to be assembled;

[0023] a fixing mechanism, which is arranged above the machine platform and is used to fix the handle on the positioning platform;

[0024] An oil spraying mechanism, which is provided on the machine platform and located on one side of the positioning platform, and is used to spray lubricating oil on the pin shaft installation position on the handle;

[0025] The automatic assembly mechanism according to any one of claims 1 to 5, wherein the automatic assembly mechanism is arranged on the machine platform and is located below the positioning platform;

[0026] A pin shaft pressing mechanism is provided on the machine platform and is located on one side of the positioning platform. The pin shaft pressing mechanism is used to press the pin shaft into the pin shaft installation position.

[0027] In the above-mentioned automatic assembly machine, the pin press-fitting mechanism includes:

[0028] A fixed platform is provided on the machine platform, wherein a first guide groove is provided on the fixed platform, wherein the first guide groove extends along the press-fitting direction of the pin shaft, and the first guide groove is used to provide a guide for the press-fitting of the pin shaft;

[0029] A guide member, which is arranged on the fixing platform and has a second guide groove arranged along the press-fitting direction of the pin shaft;

[0030] a seventh driving member, which is horizontally arranged on the fixing platform and located on one side of the guide member;

[0031] a transport member movably disposed on the fixed platform and connected to the output end of the seventh driving member, the transport member being provided with a receiving groove, the width of the receiving groove being smaller than the width of the second guide groove in the same direction perpendicular to the press-fitting direction of the pin shaft, the seventh driving member being used to drive the transport member to move between a receiving position and a transport position on the fixed platform;

[0032] When the transporting member is located at the receiving position, the receiving groove is used to receive the pin transported from the second guide groove;

[0033] When the transporting member is located at the transporting position, it is used to transport the pin in the receiving groove into the first guide groove.

[0034] In the above-mentioned automatic assembly machine, the pin press-fitting mechanism further comprises:

[0035] a fourth connecting frame, which is arranged on the machine platform and on one side of the fixing platform;

[0036] an eighth driving member, horizontally disposed on the fourth connecting frame;

[0037] A press-fitting rod is connected to the output end of the eighth driving member and movably inserted in the first guide groove. The axis of the press-fitting rod coincides with the center line of the first guide groove. The press-fitting rod is used to push the pin shaft along the first guide groove and press it into the pin shaft installation position of the handle.

[0038] In the above-mentioned automatic assembly machine, the oil injection mechanism includes:

[0039] a fifth connecting frame;

[0040] a ninth driving member, horizontally disposed on the fifth connecting frame;

[0041] The spraying member is connected to the output end of the ninth driving member, and the ninth driving member is used to drive the spraying member to move toward or away from the handle on the positioning platform.

[0042] In the above-mentioned automatic assembly machine, the fixing mechanism includes:

[0043] a sixth connecting frame;

[0044] a tenth driving member, which is vertically arranged on the sixth connecting frame;

[0045] a connecting member, which is arranged at an output end of the tenth driving member;

[0046] A pressing block is provided on the connecting member and is used for movably pressing against the handle on the positioning platform.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] (1) By setting up a receiving part, a press-fitting assembly, a clamping assembly and a pressing assembly, the automatic positioning, clamping, press-fitting and limiting of the torsion spring are realized, effectively solving the problems of wrong direction and missing installation that are easy to occur in the traditional manual installation of torsion springs; the receiving part limits the first torsion arm through the first limiting part to ensure the correct posture of the torsion spring when it enters the assembly position; the press-fitting assembly limits the second torsion arm through the pushing part and the second limiting part to improve the stability of the press-fitting process; the clamping assembly can accurately clamp the torsion spring and send it to the press-fitting position; the pressing assembly cooperates with the receiving part to form a limiting space to prevent the torsion spring from deflecting during the clamping process. The overall structural design is reasonable, which significantly improves the assembly accuracy and efficiency and reduces the labor intensity.

[0049] (2) The receiving part is designed with a base, a first limiting part, a support part, and an arc surface structure, which can stably support the torsion spring and accurately position it. The tilted setting of the support part helps the torsion spring to be smoothly inserted and automatically positioned. The arc surface is compatible with the shape of the torsion spring body, enhancing the stability and fit of the clamping. The setting of the first sensor can detect whether the torsion spring is in place in real time, effectively preventing the occurrence of missing installation, thereby improving the stability and reliability of the automated assembly process.

[0050] (3) The positioning groove on the pusher, combined with the magnet adsorption structure, can effectively fix the torsion spring and prevent it from shifting or falling off during the press-fitting process. The third limiting part is composed of the two side walls of the positioning groove, which is used to limit the two ends of the torsion spring, thereby further improving the stability of the press-fitting process and increasing the consistency and success rate of assembly.

[0051] (4) By setting up a machine platform, a positioning table, a fixing mechanism, an oil spraying mechanism, an automatic assembly mechanism, and a pin pressing mechanism, it is possible to achieve integrated automatic operation of torsion spring installation, pin pressing, and lubrication spraying. This equipment effectively integrates multiple assembly links, reduces manual intervention, avoids frequent transfer of workpieces between multiple stations, improves production efficiency, saves factory space, and enhances the overall level of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a three-dimensional view of the handle after the pin and torsion spring are installed.

[0053] Figure 2 It is a three-dimensional diagram of a torsion spring.

[0054] Figure 3 It is a three-dimensional diagram of an automatic assembly machine of the present invention.

[0055] Figure 4 It is a three-dimensional diagram of an automatic assembly mechanism for a handle according to the present invention.

[0056] Figure 5 yes Figure 4 A three-dimensional view of the body with the press-fit assembly and the first vibration plate hidden.

[0057] Figure 6 It is a three-dimensional diagram of the structure of the receiving part.

[0058] Figure 7 This is a perspective view of the press-fit assembly.

[0059] Figure 8 yes Figure 7 A partial enlarged view of point A in the middle.

[0060] Figure 9 It is a three-dimensional diagram of the pin press-fitting mechanism.

[0061] Figure 10 yes Figure 9 A three-dimensional image showing the second vibration plate hidden behind.

[0062] Figure 11 It is a three-dimensional diagram of the fuel injection mechanism.

[0063] Figure 12 It is a three-dimensional diagram of the fixing mechanism.

[0064] In the figure, 1, handle; 2, torsion spring; 21, body; 22, first torsion arm; 23, second torsion arm; 3, pin; 100, machine; 110, positioning platform; 200, fixing mechanism; 210, sixth connecting frame; 220, tenth driving member; 230, connecting member; 240, pressing block; 300, oil injection mechanism; 310, fifth connecting frame; 320, ninth driving member; 330, spraying member; 400, automatic assembly mechanism; 410, receiving member; 411, first limiting part; 412, base; 413, supporting part; 413a, arc surface; 414, first sensor; 420, press-fit assembly; 421, pushing member; 421a, positioning groove; 421b, third limiting part; 422, second limiting part; 423, first A connecting frame; 424, a first driving member; 425, a second driving member; 426, a second sensor; 430, a clamping assembly; 431, a torsion spring clamp; 432, a second connecting frame; 433, a third driving member; 434, a fourth driving member; 435, a fifth driving member; 440, a pressing assembly; 441, a pressing block; 442, a third connecting frame; 443, a sixth driving member; 450, a first vibration disk; 500, a pin pressing mechanism; 510, a fixing table; 511, a first guide groove; 520, a guide member; 521, a second guide groove; 530, a seventh driving member; 540, a transport member; 541, a receiving groove; 550, a fourth connecting frame; 560, an eighth driving member; 570, a pressing rod; 580, a second vibration disk. DETAILED DESCRIPTION

[0065] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0066] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0067] like Figure 1 、 Figures 4 to 8 As shown, the present invention is an automatic assembly mechanism for a handle, which is used to install a torsion spring 2 into a handle 1. The torsion spring 2 includes a main body 21 and a first torsion arm 22 and a second torsion arm 23 arranged on the main body 21. The extension direction of the first torsion arm 22 is parallel to the axial direction of the main body 21. The automatic assembly mechanism 400 includes: a receiving part 410, a press-fitting assembly 420, a clamping assembly 430, and a pressing assembly 440.

[0068] Specifically, the receiving member 410 is used to receive the torsion spring 2 to be assembled. The receiving member 410 is provided with a first limiting portion 411 along the entry direction of the torsion spring 2. When the torsion spring 2 enters the receiving member 410, the first limiting portion 411 movably abuts against the first torsion arm 22 to provide a limit for the first torsion arm 22.

[0069] The press-fitting assembly 420 is disposed on one side of the receiving member 410 and includes a pushing member 421 movably disposed in the vertical direction. The pushing member 421 is used to push the torsion spring 2 to the press-fitting position. The pushing member 421 is provided with a second limiting portion 422 that movably abuts against the second torsion arm 23. When the torsion spring 2 moves in the press-fitting direction, the second limiting portion 422 abuts against the second torsion arm 23 to provide a limit for the second torsion arm 23.

[0070] The clamping assembly 430 is provided on one side of the receiving member 410 and includes a movable torsion spring clamping claw 431. The torsion spring clamping claw 431 is used to extend into the body 21 to grasp and release the torsion spring 2.

[0071] The pressing assembly 440 is arranged on one side of the receiving member 410, and includes a pressing block 441 movably arranged above the receiving member 410; wherein, when the torsion spring clamp 431 extends into the main body 21 to grasp the torsion spring 2, the pressing block 441 moves in the horizontal direction and cooperates with the receiving member 410 to form a limiting space for the torsion spring 2, which is used to prevent the torsion spring 2 from deflecting on the receiving member 410.

[0072] The receiving member 410 is a component for transferring and positioning the torsion spring 2, and is used to receive the torsion spring 2 transported from the first vibration plate 450 and the direct vibration device. When the torsion spring 2 passes through the first vibration plate 450 and enters the direct vibration device, its posture is roughly as follows: Figure 2 When the torsion spring 2 is transported from the direct vibration device to the receiving member 410, the first limiting portion 411 provided on the receiving member 410 limits the first torsion arm 22 of the torsion spring 2, so that the torsion spring 2 is stably transferred to the receiving member 410 in a predetermined posture (see Figure 4 and Figure 5 Of course, the torsion spring 2 can also be transported to the receiving member 410 by a robot or other automated transport mechanism.

[0073] After the torsion spring 2 is transported to the receiving part 410, it needs to be clamped by the clamping assembly 430 and transferred to the pushing part 421 of the pressing assembly 420, and then the pushing part 421 pushes the torsion spring 2 to the pressing position. In the process of clamping the torsion spring 2, if only the body 21 of the torsion spring 2 is clamped from the outside, since the torsion spring 2 itself has elasticity, the design of the clamping force will become particularly critical: if the clamping force is too large, it may cause irreversible deformation or even damage to the torsion spring 2; and if the clamping force is too small, it may cause the torsion spring 2 to separate from the clamping assembly 430 during transportation. For this reason, in this solution, a torsion spring clamp 431 that can be extended into the interior of the torsion spring 2 body 21 is provided on the clamping assembly 430 to achieve stable clamping of the torsion spring 2.

[0074] Specifically, the torsion spring clamp 431 comprises a pneumatic cylinder with two clamping blocks connected to its output end. The cylinder drives the two clamping blocks toward or away from each other, thereby clamping and releasing the torsion spring 2. During operation, the cylinder first drives the two clamping blocks toward each other. Then, driven by the clamping assembly 430, the clamping blocks extend into the body 21 of the torsion spring 2. The cylinder then drives the clamping blocks away from each other, effectively clamping the torsion spring 2.

[0075] During the process of the torsion spring clamping jaw 431 driving the clamping block to extend into the torsion spring 2 body 21, in order to prevent the clamping jaw from pushing the torsion spring 2 out of the receiving member 410 due to processing errors of the torsion spring 2, or preventing the torsion spring 2 from changing its posture due to interference between the clamping jaw and the torsion spring 2, the pressing assembly 440 provided in this solution presses down and presses on the upper end of the torsion spring 2 in advance before the torsion spring clamping jaw 431 extends into the torsion spring 2 body 21, thereby forming a limiting space for the torsion spring 2 together with the receiving member 410. This design effectively ensures that the clamping assembly 430 can smoothly clamp the torsion spring 2 and ensures that the posture of the torsion spring 2 remains unchanged during the clamping process.

[0076] After the torsion spring clamp 431 has grasped the torsion spring 2, the clamping assembly 430 activates the torsion spring clamp 431, transferring the torsion spring 2 to the pusher 421 of the press-fit assembly 420. Through the cooperation of the first stopper 411 on the receiving member 410 and the pressing assembly 440, the torsion spring 2 maintains its original position during its transfer from the receiving member 410 to the pusher 421. The pusher 421 is provided with a second stopper 422, which abuts against the second torsion arm 23 during the press-fit process. This ensures the stability of the torsion spring 2 during press-fitting, improving press-fitting accuracy and reliability.

[0077] In summary, this solution achieves automatic positioning, clamping, press-fitting and limiting of the torsion spring 2 by providing a receiving member 410, a press-fitting assembly 420, a clamping assembly 430 and a pressing assembly 440, effectively solving the problems of wrong direction and missing installation that are prone to occur during the traditional manual installation of the torsion spring 2. The receiving member 410 limits the first torsion arm 22 through the first limiting portion 411 to ensure that the torsion spring 2 has the correct posture when entering the assembly position; the press-fitting assembly 420 limits the second torsion arm 23 through the pushing member 421 and the second limiting portion 422 to improve the stability of the press-fitting process; the clamping assembly 430 can accurately clamp the torsion spring 2 and send it to the press-fitting position; the pressing assembly 440 cooperates with the receiving member 410 to form a limiting space to prevent the torsion spring 2 from deflecting during the clamping process. The overall structural design is reasonable, significantly improving assembly accuracy and efficiency and reducing manual labor intensity.

[0078] Preferably, when the torsion spring 2 is located on the receiving member 410 , its central axis is perpendicular to its central axis when it is located on the pushing member 421 .

[0079] By aligning the central axis of the torsion spring 2 on the receiving member 410 and the central axis of the torsion spring 2 on the pushing member 421 at right angles, the torsion spring 2 can be oriented between the receiving member 410 and the press-fitting position, facilitating subsequent press-fitting operations. This rational structural design effectively improves the space utilization and joint efficiency of the automatic assembly mechanism 400.

[0080] It is worth mentioning that the receiving part 410 includes: a base 412, a first limiting portion 411 which is a limiting groove arranged on the base 412; two supporting portions 413 extending outward along one end of the base 412, and a placement space for placing the main body 21 is formed between the two supporting portions 413, and the placement space is used to position the main body 21, and at least one supporting portion 413 is provided with an arc surface 413a, and the arc surface 413a is adapted to the shape of the main body 21; a first sensor 414, which is arranged on the base 412, and the sensing end of the first sensor 414 passes through the base 412 and is located in the limiting groove, and is used to sense the torsion spring 2 on the receiving part 410.

[0081] Preferably, the two support portions 413 are integrally formed with the base 412, and a first sensor 414 is fixed to the base 412 by means of inlaying or threaded connection, and is used to sense whether the torsion spring 2 has been transported to the receiving member 410. Furthermore, at least one of the support portions 413 is provided with an arcuate surface 413a, which is used to prevent interference between the receiving member 410 and the torsion spring 2 during the process of transporting the torsion spring 2 from the first vibration plate 450 and the direct vibration device to the receiving member 410, thereby preventing the torsion spring 2 from changing its posture.

[0082] In this solution, the receiving member 410 utilizes a base 412, a first limiting portion 411, a support portion 413, and a curved surface 413a, ensuring stable support and accurate positioning of the torsion spring 2. The tilted support portion 413 facilitates smooth insertion and automatic positioning of the torsion spring 2. The curved surface 413a conforms to the contour of the torsion spring 2's body 21, enhancing clamping stability and fit. The provision of a first sensor 414 enables real-time detection of the torsion spring 2's position, effectively preventing missed installation and thereby improving the stability and reliability of the automated assembly process.

[0083] It is worth mentioning that a positioning groove 421a is provided on the pushing member 421, and a magnet is provided on the bottom wall of the positioning groove 421a. The magnet is used to adsorb the torsion spring 2 placed in the positioning groove 421a. The opposite side walls of the positioning groove 421a form a third limiting portion 421b. The third limiting portion 421b is in contact with the two ends of the main body 21 for limiting, and is used to provide lateral limitation for the torsion spring 2 placed in the positioning groove 421a.

[0084] The positioning groove 421a receives the torsion spring 2 delivered by the torsion spring clamp 431. The positioning groove 421a on the pusher 421, combined with the magnetic attraction structure, effectively secures the torsion spring 2, preventing it from shifting or falling off during the press-fit process. The third stopper 421b, formed by the two side walls of the positioning groove 421a, is used to limit the ends of the torsion spring 2, further improving stability during the press-fit process and increasing assembly consistency and success rate.

[0085] Furthermore, the press-fitting assembly 420 includes: a first connecting frame 423; a first driving member 424, which is uprightly arranged on the first connecting frame 423; a second driving member 425, which is uprightly arranged at the output end of the first driving member 424, and the pushing member 421 is arranged at the output end of the second driving member 425, and the first driving member 424 is used to drive the second driving member 425 to move in the vertical direction; a second sensor 426, which is arranged on the first connecting frame 423, and the sensing end of the second sensor 426 is arranged toward the pushing member 421, for sensing the torsion spring 2 on the pushing member 421.

[0086] The first connecting frame 423 constitutes the overall support structure of the press-fit assembly 420 and serves as a connection component to the machine platform 100, used to securely mount the entire press-fit assembly 420 on the machine platform 100. The first and second driving members 424, 425 are preferably pneumatic cylinders. The two-stage drive structure formed by the first and second driving members 424, 425 is used to increase the press-fit speed of the torsion spring 2, thereby improving the assembly efficiency of the handle 1. The second sensor 426 is used to detect whether the gripping assembly 430 has correctly grasped and transferred the torsion spring 2 to the pushing member 421, thereby ensuring the success rate of the press-fitting of the torsion spring 2.

[0087] The clamping assembly 430 includes: a second connecting frame 432; a third driving member 433, which is vertically arranged on the second connecting frame 432; a fourth driving member 434, which is vertically arranged at the output end of the third driving member 433, and the third driving member 433 is used to drive the fourth driving member 434 to move in the vertical direction; a fifth driving member 435, which is horizontally arranged at the output end of the fourth driving member 434, and the fourth driving member 434 is used to drive the fifth driving member 435 to rotate; the torsion spring clamp 431 is connected to the output end of the fifth driving member 435, and the fifth driving member 435 is used to drive the torsion spring clamp 431 to move in the horizontal direction.

[0088] The second connecting frame 432 forms the overall support structure of the clamping assembly 430 and serves as a connection component to the machine platform 100, securing the entire clamping assembly 430 to the machine platform 100. The third and fifth driving members 433, 435 are preferably pneumatic cylinders, while the fourth driving member 434 may be a motor or a rotary cylinder. The third, fourth, and fifth driving members 433, 434, 435 collectively form a three-dimensional transport platform for transferring the torsion spring 2 from the receiving member 410 to the pushing member 421.

[0089] The pressing assembly 440 includes: a third connecting frame 442, which is arranged on one side of the supporting member 410; a sixth driving member 443, which is horizontally connected to the third connecting frame 442, and the pressing block 441 is connected to the output end of the sixth driving member 443, and the sixth driving member 443 is used to drive the pressing block 441 to move closer to or away from the supporting member 410.

[0090] The third connecting frame 442 constitutes the overall support structure of the pressing assembly 440 and serves as a component connected to the receiving member 410, and is used to fix the entire pressing assembly 440 to the receiving member 410. The sixth driving member 443 is preferably a cylinder, which is used to drive the pressing block 441 toward or away from the receiving member 410, thereby achieving a pressing operation on the torsion spring 2 on the receiving member 410.

[0091] The working process of the automatic assembly mechanism 400 of this solution is as follows: the first vibration plate 450 and the direct vibration device assemble the torsion spring 2 as follows: Figure 2The torsion spring 2 is transported to the receiving member 410 in the posture shown. When the first sensor 414 detects that the torsion spring 2 is in place, the sixth driving member 443 is activated, driving the pressing block 441 toward the receiving member 410, pressing the pressing block 441 against the upper end of the torsion spring 2 to fix it. Subsequently, the third driving member 433, the fourth driving member 434 and the fifth driving member 435 work together to drive the torsion spring clamp 431 to extend into and grab the torsion spring 2 on the receiving member 410. Then, the sixth driving member 443 is activated again to drive the pressing block 441 to reset and release the restriction on the torsion spring 2. After the restriction is released, the third driving member 433, the fourth driving member 434 and the fifth driving member 435 work together again to drive the torsion spring clamp 431 to transport the torsion spring 2 to the pushing member 421. When the second sensor 426 detects that the torsion spring 2 has been placed in place, the first driving member 424 and the second driving member 425 are started, driving the pushing member 421 to move the torsion spring 2 toward the handle 1 and press the torsion spring 2 into the handle 1, thereby completing the automatic installation process of the torsion spring 2.

[0092] Reference Figures 1 to 12 The present solution also proposes an automatic assembly machine, comprising: a machine platform 100, a fixing mechanism 200, an oil injection mechanism 300, a pin pressing mechanism 500 and the above-mentioned automatic assembly mechanism 400.

[0093] A positioning platform 110 is provided on the machine 100, and the positioning platform 110 is used to position the handle 1 to be assembled; the fixing mechanism 200 is provided above the machine 100, and is used to fix the handle 1 on the positioning platform 110; the oil spraying mechanism 300 is provided on the machine 100 and is located on one side of the positioning platform 110, and is used to spray lubricating oil for the pin installation position on the handle 1; the automatic assembly mechanism 400 is provided on the machine 100 and is located below the positioning platform 110; the pin pressing mechanism 500 is provided on the machine 100 and is located on one side of the positioning platform 110, and the pin pressing mechanism 500 is used to press the pin 3 into the pin installation position.

[0094] The positioning platform 110 serves as the positioning structure for the handle 1 and is equipped with multiple contoured structures that match the handle 1's external shape and hole-like structure. In another embodiment, the positioning platform 110 also includes a foolproof structure to ensure that the handle 1 is correctly installed into the positioning platform 110 according to the preset installation posture, preventing incorrect installation. Through-holes are provided in the positioning platform 110 and the machine platform 100 for the passage of the pusher 421 of the press-fit assembly 420, allowing the pusher 421 to press-fit the torsion spring 2 into the handle 1.

[0095] The oil injection sequence of the oil injection mechanism 300 can be set according to actual needs. The oil injection operation can be performed before or after press-fitting the torsion spring 2. Its function is to spray lubricating oil on the pin installation position on the handle 1 before press-fitting the pin 3. This reduces the friction between the pin 3 and the handle 1 during press-fitting, thereby facilitating smooth insertion of the pin 3.

[0096] This solution, by arranging a machine platform 100, a positioning platform 110, a fixing mechanism 200, an oil spraying mechanism 300, an automatic assembly mechanism 400, and a pin pressing mechanism 500, enables integrated automated operations for installing a torsion spring 2, pressing a pin 3, and applying lubricant. This equipment effectively integrates multiple assembly steps, reduces manual intervention, avoids frequent workpiece transfers between multiple workstations, improves production efficiency, saves factory space, and enhances overall automation.

[0097] It is worth mentioning that the pin pressing mechanism 500 includes: a fixed platform 510, which is arranged on the machine platform 100, and a first guide groove 511 is provided on the fixed platform 510, the first guide groove 511 extends along the pressing direction of the pin 3, and the first guide groove 511 is used to provide a guide for the pressing of the pin 3; a guide member 520, which is arranged on the fixed platform 510 and has a second guide groove 521 arranged along the pressing direction of the pin 3; a seventh driving member 530, which is horizontally arranged on the fixed platform 510 and is located on one side of the guide member 520; a conveying member 540, which is movably arranged on the fixed platform 510 and connected to the fixed platform 510. Connected to the output end of the seventh driving member 530, a receiving groove 541 is provided on the transport member 540. The width of the receiving groove 541 in the direction perpendicular to the pressing direction of the pin shaft 3 is smaller than the width of the second guide groove 521 in the same direction. The seventh driving member 530 is used to drive the transport member 540 to move between the receiving position and the transport position on the fixed platform 510; when the transport member 540 is at the receiving position, it is used for the receiving groove 541 to receive the pin shaft 3 transported from the second guide groove 521; when the transport member 540 is at the transport position, it is used to transport the pin shaft 3 in the receiving groove 541 to the first guide groove 511.

[0098] The fixing platform 510 is constituted as an integral supporting portion 413 of the pin press-fitting mechanism 500 and is used for fixed connection with the machine platform 100 , and the connection between the two is preferably achieved by a threaded connection.

[0099] The guide member 520 is preferably a long, block-shaped structure, and is preferably connected to the fixed platform 510 via a threaded connection. The guide member 520 is provided with a second guide groove 521 for receiving the pin 3 transported by the second vibrating plate 580 and the direct vibration device, and providing preliminary guidance for the delivery of the pin 3.

[0100] The seventh driving member 530 is preferably a pneumatic cylinder, the output end of which is connected to a transport member 540. The transport member 540 is provided with a receiving groove 541 for receiving the pin 3 conveyed from the second guide groove 521 and conveying it into the first guide groove 511. The width of the receiving groove 541 in the direction perpendicular to the press-fitting direction of the pin 3 is smaller than the width of the second guide groove 521 in the same direction. This structural design forms a two-level guide structure during the conveying of the pin 3, thereby effectively improving the press-fitting accuracy of the pin 3.

[0101] In the drawings of this embodiment, the first guide groove 511, the second guide groove 521 and the receiving groove 541 are all configured as square structures. Of course, the above structures can also be configured as circular or other suitable shapes according to actual needs.

[0102] The pin press-fitting mechanism 500, through the provision of a first guide slot 511, a guide member 520, a second guide slot 521, a seventh drive member 530, and a transport member 540, achieves automatic positioning and precise transport of the pin 3. The dimensional matching between the receiving slot 541 and the second guide slot 521 ensures that the pin 3 can stably enter the transport member 540 and be accurately transported to the first guide slot 511, providing reliable support for the subsequent press-fitting process. This rational structural design and coordinated operation effectively enhance the automation and assembly precision of the pin 3 press-fitting process.

[0103] Furthermore, the pin shaft pressing mechanism 500 also includes: a fourth connecting frame 550, which is arranged on the machine 100 and on one side of the fixed platform 510; an eighth driving member 560, which is horizontally arranged on the fourth connecting frame 550; a pressing rod 570, which is connected to the output end of the eighth driving member 560 and movably inserted in the first guide groove 511, and the axis of the pressing rod 570 coincides with the center line of the first guide groove 511. The pressing rod 570 is used to push the pin shaft 3 along the first guide groove 511 and press it to the pin shaft installation position of the handle 1.

[0104] The fourth connecting frame 550 forms the mounting base for the eighth driving member 560 on the machine 100. Its mounting height on the machine 100 is set based on the mounting position of the pin of the handle 1 to ensure that the pin 3 can be smoothly pressed into the handle 1. The eighth driving member 560 is preferably a pneumatic cylinder, which drives the pressing rod 570 toward or away from the handle 1 to achieve the press-fitting operation of the pin 3.

[0105] In this embodiment, the press-fitting rod 570 and the eighth driving member 560 are provided, and in conjunction with the first guide slot 511, precise press-fitting of the pin 3 is achieved. The axis of the press-fitting rod 570 coincides with the centerline of the first guide slot 511, ensuring uniform force and accurate direction during the press-fitting process. This effectively prevents the pin 3 from tilting or being misaligned during the press-fitting process, thereby improving product assembly quality and consistency.

[0106] The oil spraying mechanism 300 includes: a fifth connecting frame 310; a ninth driving member 320, which is horizontally arranged on the fifth connecting frame 310; a spraying member 330, which is connected to the output end of the ninth driving member 320, and the ninth driving member 320 is used to drive the spraying member 330 to approach or move away from the handle 1 on the positioning platform 110.

[0107] The fifth connecting frame 310 serves as a mounting support for the oil spraying mechanism 300 on the machine platform 100 and is preferably secured to the machine platform 100 via a threaded connection. The ninth driving member 320, preferably a pneumatic cylinder, is used to move the spraying member 330 on the machine platform 100 toward or away from the handle 1 fixed to the positioning platform 110, thereby moving the spraying member 330 toward or away from the handle 1's pin mounting location, allowing the spraying member 330 to spray lubricating oil at all locations along the pin mounting location.

[0108] The spraying member 330 described in this solution has the same structure as the spray gun in the prior art, and the specific structure will not be repeated here.

[0109] The fixing mechanism 200 includes: a sixth connecting frame 210; a tenth driving member 220, which is uprightly arranged on the sixth connecting frame 210; a connecting member 230, which is arranged at the output end of the tenth driving member 220; and a pressing block 240, which is arranged on the connecting member 230 and is used to movably press against the handle 1 on the positioning platform 110.

[0110] The sixth connecting frame 210 serves as a mounting support for the fixing mechanism 200 and is preferably secured to the machine platform 100 via a threaded connection. The tenth driving member 220 is preferably a pneumatic cylinder, which is used to move the connecting member 230 toward or away from the handle 1 on the positioning platform 110, thereby driving the pressing block 240 to press or release the handle 1 on the positioning platform 110, thereby improving the stability and assembly quality of the handle 1 during the press-fit process.

[0111] Preferably, the pressing block 240 is made of nylon material to prevent the surface of the handle 1 from being crushed when the handle 1 is pressed, thereby protecting the appearance quality and structural integrity of the handle 1.

[0112] The working process of the automatic assembly machine of this scheme is as follows: the operator first places the handle 1 to be assembled on the positioning platform 110, and then the fixing mechanism 200 is started, and the tenth driving member 220 provided thereon drives the clamping block 240 to press down, thereby stably fixing the handle 1 on the positioning platform 110.

[0113] After the handle 1 is fixed, the automatic assembly mechanism 400 starts to work, and through the coordinated cooperation between the first vibration plate 450, the direct vibration device, the receiving part 410, the press-fitting assembly 420, the clamping assembly 430 and the pressing assembly 440, the torsion spring 2 is accurately pressed into the handle 1.

[0114] After the torsion spring 2 is press-fitted, the oil spraying mechanism 300 sprays lubricating oil on the pin installation position on the handle 1 to reduce friction resistance during the subsequent press-fitting process of the pin 3.

[0115] After the lubricating oil is sprayed, the pin pressing mechanism 500 starts to operate. Through the cooperation of the second vibration plate 580 and the direct vibration device, the pin 3 is transported from the second guide groove 521 on the guide member 520 to the receiving groove 541 of the conveying member 540.

[0116] After the receiving slot 541 receives the pin 3, the seventh driving member 530 is activated, driving the transport member 540 to move on the fixed platform 510, so that the receiving slot 541, which was originally aligned with the second guide slot 521, moves to align with the first guide slot 511. After the receiving slot 541 is aligned with the first guide slot 511, the pin 3 falls into the first guide slot 511 under its own weight.

[0117] Subsequently, the eighth driving member 560 drives the press-fitting rod 570 to extend into the first guide slot 511, pressing the pin 3 in the slot into the mounting hole of the handle 1. During the pressing process, the pin 3 passes through the centerline of the torsion spring 2 body 21, thereby firmly fixing the torsion spring 2 to the handle 1, completing the assembly process of the handle 1.

[0118] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0119] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0120] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An automatic assembly mechanism for a handle, used to install a torsion spring into a handle, wherein the torsion spring comprises a body and a first torsion arm and a second torsion arm provided on the body, wherein the first torsion arm extends in a direction parallel to the axial direction of the body, and wherein: Automatic assembly mechanism includes: a receiving member for receiving the torsion spring to be assembled, wherein the receiving member is provided with a first limiting portion along the entry direction of the torsion spring, and when the torsion spring enters the receiving member, the first limiting portion movably abuts against the first torsion arm to provide a limit for the first torsion arm; A press-fitting assembly is provided on one side of the receiving member, and includes a pushing member movably arranged in a vertical direction, the pushing member is used to push the torsion spring to a press-fitting position, and the pushing member is provided with a second limiting portion that movably abuts against the second torsion arm. When the torsion spring moves in the press-fitting direction, the second limiting portion abuts against the second torsion arm to provide a limit for the second torsion arm; A clamping assembly is provided on one side of the receiving member and includes a movably arranged torsion spring clamping jaw, the torsion spring clamping jaw being used to extend into the body to grasp and release the torsion spring; The pressing assembly is arranged on one side of the receiving member and includes a pressing block movably arranged above the receiving member; wherein, When the torsion spring clamp extends into the body to grab the torsion spring, the pressing block moves in the horizontal direction and cooperates with the receiving member to form a limiting space for the torsion spring, which is used to prevent the torsion spring from deflecting on the receiving member.

2. The automatic assembly mechanism for a handle according to claim 1, characterized in that: When the torsion spring is located on the receiving member, the central axis thereof is perpendicular to the central axis thereof when it is located on the pushing member.

3. The automatic assembly mechanism for a handle according to claim 1, characterized in that: The receiving piece includes: A base, wherein the first limiting portion is a limiting groove provided on the base; Two support portions extending outwardly along one end of the base, with a placement space for the body formed between the two support portions, the placement space being used to position the body, and at least one of the support portions being provided with a curved surface that matches the outer shape of the body; A first sensor is provided on the base, wherein a sensing end of the first sensor passes through the base and is located in the limiting groove, and is used for sensing the torsion spring on the receiving member.

4. The automatic assembly mechanism for a handle according to claim 1, characterized in that: A positioning groove is provided on the pushing member, and a magnet is provided on the bottom wall of the positioning groove. The magnet is used to absorb the torsion spring placed in the positioning groove. The two opposite side walls of the positioning groove form a third limiting portion. The third limiting portion contacts and limits the two ends of the body, and is used to provide lateral limitation for the torsion spring placed in the positioning groove.

5. The automatic assembly mechanism for a handle according to claim 1, characterized in that: The press-fitting assembly includes: a first connecting frame; a first driving member, which is vertically arranged on the first connecting frame; a second driving member, which is vertically arranged at the output end of the first driving member, and the pushing member is arranged at the output end of the second driving member, and the first driving member is used to drive the second driving member to move in a vertical direction; a second sensor, which is arranged on the first connecting frame, and the sensing end of the second sensor is arranged toward the pushing member, and is used to sense the torsion spring on the pushing member; The clamping assembly includes: a second connecting frame; a third driving member, which is vertically arranged on the second connecting frame; a fourth driving member, which is vertically arranged at the output end of the third driving member, and the third driving member is used to drive the fourth driving member to move in the vertical direction; a fifth driving member, which is horizontally arranged at the output end of the fourth driving member, and the fourth driving member is used to drive the fifth driving member to rotate; the torsion spring clamp is connected to the output end of the fifth driving member, and the fifth driving member is used to drive the torsion spring clamp to move in the horizontal direction; The pressing assembly includes: a third connecting frame, which is arranged on one side of the receiving member; a sixth driving member, which is horizontally connected to the third connecting frame, and the pressing block is connected to the output end of the sixth driving member, and the sixth driving member is used to drive the pressing block to move closer to or away from the receiving member.

6. An automatic assembly machine, characterized in that: include: a machine platform on which a positioning platform is provided, wherein the positioning platform is used to position the handle to be assembled; a fixing mechanism, which is arranged above the machine platform and is used to fix the handle on the positioning platform; An oil spraying mechanism, which is provided on the machine platform and located on one side of the positioning platform, and is used to spray lubricating oil on the pin shaft installation position on the handle; The automatic assembly mechanism according to any one of claims 1 to 5, wherein the automatic assembly mechanism is arranged on the machine platform and is located below the positioning platform; A pin shaft pressing mechanism is provided on the machine platform and is located on one side of the positioning platform. The pin shaft pressing mechanism is used to press the pin shaft into the pin shaft installation position.

7. An automatic assembly machine according to claim 6, characterized in that: The pin shaft pressing mechanism comprises: A fixed platform is provided on the machine platform, wherein a first guide groove is provided on the fixed platform, wherein the first guide groove extends along the press-fitting direction of the pin shaft, and the first guide groove is used to provide a guide for the press-fitting of the pin shaft; A guide member, which is arranged on the fixing platform and has a second guide groove arranged along the press-fitting direction of the pin shaft; a seventh driving member, which is horizontally arranged on the fixing platform and located on one side of the guide member; a transport member movably disposed on the fixed platform and connected to the output end of the seventh driving member, the transport member being provided with a receiving groove, the width of the receiving groove being smaller than the width of the second guide groove in the same direction perpendicular to the press-fitting direction of the pin shaft, the seventh driving member being used to drive the transport member to move between a receiving position and a transport position on the fixed platform; When the transporting member is located at the receiving position, the receiving groove is used to receive the pin transported from the second guide groove; When the transporting member is located at the transporting position, it is used to transport the pin in the receiving groove into the first guide groove.

8. An automatic assembly machine according to claim 7, characterized in that: The pin shaft pressing mechanism also includes: a fourth connecting frame, which is arranged on the machine platform and on one side of the fixing platform; an eighth driving member, horizontally disposed on the fourth connecting frame; A press-fitting rod is connected to the output end of the eighth driving member and movably inserted in the first guide groove. The axis of the press-fitting rod coincides with the center line of the first guide groove. The press-fitting rod is used to push the pin shaft along the first guide groove and press it into the pin shaft installation position of the handle.

9. The automatic assembly machine according to claim 6, characterized in that: The oil injection mechanism comprises: a fifth connecting frame; a ninth driving member, horizontally disposed on the fifth connecting frame; The spraying member is connected to the output end of the ninth driving member, and the ninth driving member is used to drive the spraying member to move toward or away from the handle on the positioning platform.

10. The automatic assembly machine according to claim 6, characterized in that: The fixing mechanism comprises: a sixth connecting frame; a tenth driving member, which is vertically arranged on the sixth connecting frame; a connecting member, which is arranged at an output end of the tenth driving member; A pressing block is provided on the connecting member and is used for movably pressing against the handle on the positioning platform.

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