Handle assembling mechanism

Abstract

The handle assembling mechanism comprises a first limiting transmission jig and a plurality of second limiting transmission jigs, the second limiting transmission jigs are arranged on the two sides of a side plate of the first limiting transmission jig correspondingly, and a downward pressing module is arranged between the two side plates of the first limiting transmission jig; a plurality of limiting grooves are formed in two side plates of the limiting transmission jig I, and a plurality of corresponding limiting grooves are formed in a side plate, close to the limiting transmission jig I, of the limiting transmission jig II; limiting mounting jigs are arranged below the two sides of the first limiting conveying jig and are in a step shape, and handle grooves are formed in the top ends of the limiting mounting jigs. By means of the arrangement of the first limiting conveying jig, the second limiting conveying jig and the limiting mounting jig, deformation of the handle becomes controllable, the handle just coming out of a mold can be deformed into the desired shape and size through the limiting and downward pressing module, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of handle assembly equipment for a handle bucket, in particular to a handle assembly mechanism. Background Art

[0002] When the handle just comes out of the mold, it has uncontrollable shrinkage, which is a common problem in the molding process of plastic products. In the prior art, the assembly of bucket handles mainly relies on manual operation, and workers need to manually compress the handles into the required arc. This method is not only time-consuming, but also requires a lot of manual input, resulting in low production efficiency. Summary of the invention

[0003] The object of the present invention is to solve the above-mentioned problem and provide a handle assembly mechanism, which controls the deformation of the handle, improves production efficiency and assembly quality, and reduces costs by setting a limiting transmission fixture 1, a limiting transmission fixture 2 and a limiting installation fixture.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a handle assembly mechanism, including a limiting transmission jig 1 and a plurality of limiting transmission jigs 2, wherein the limiting transmission jigs 2 are respectively arranged on both sides of the side panels of the limiting transmission jig 1, and a pressing module is arranged between the two side panels of the limiting transmission jig 1; a plurality of limiting grooves are arranged on the two side panels of the limiting transmission jig 1, and a plurality of corresponding limiting grooves are arranged on the side panels of the limiting transmission jig 2 close to the limiting transmission jig 1; limiting installation jigs are arranged below both sides of the limiting transmission jig 1, and the limiting installation jigs are step-shaped, and a handle groove is arranged at the top. The arrangement of the limiting transmission jig 1, the limiting transmission jig 2 and the limiting installation jig makes the deformation of the handle controllable, and the handle just out of the mold can be deformed into the desired shape and size through the limiting and pressing modules.

[0005] Preferably, the first position-limiting transmission fixture is composed of a main board and two side plates located on both sides of the main board, and the two side plates are perpendicular to the main board. The second position-limiting transmission fixture is an L-shaped plate. A stable support structure is provided, which simplifies the assembly process, and the position-limiting transmission fixture is a plate material, and no mold is required for production. Small batch production is possible, and the position-limiting groove or size can be easily changed according to demand, which saves production costs and improves production efficiency.

[0006] Preferably, a side plate of the second limiting transmission fixture is arranged in parallel with a side plate of the first limiting transmission fixture, so as to ensure that the position conversion of the lifting hand can be carried out smoothly, thereby improving the accuracy and efficiency of assembly.

[0007] Preferably, a plurality of limiting grooves of the limiting transmission fixture 1 and the limiting transmission fixture 2 are arranged on one side of the side plate, and the limiting grooves are open toward the outside. The handle is placed in the limiting groove to limit the handle.

[0008] Preferably, the limiting groove on the limiting transmission fixture 1 is in the same horizontal plane as the corresponding limiting groove on the limiting transmission fixture 2, so as to ensure the smooth transition of the handle from the limiting groove of the limiting transmission fixture 1 to the limiting groove of the limiting transmission fixture 2, and ensure the consistency and accuracy of the automated assembly process.

[0009] Preferably, a top end of the position-limiting transmission fixture is provided with an arc plate, and a pneumatic finger is provided on the arc plate. The pneumatic finger is used to rotate and clamp the handle, and the arc plate plays a certain supporting role on the handle, improving the assembly efficiency. The pneumatic finger can accurately control the clamping force to avoid over-clamping or under-clamping of the handle, protect the handle from damage, and also ensure the assembly quality.

[0010] Preferably, the main body of the pressing module is a pressing cylinder, and a pressing plate is provided at the bottom of the pressing cylinder to press down the top of the handle to deform the handle, thereby making the opening of the handle larger, and the deformation amount can be accurately controlled to improve assembly quality and production efficiency.

[0011] Preferably, the pressing module is arranged below the pneumatic finger, and the width of the pressing plate is smaller than the width of one side plate of the position-limiting transmission fixture, so as to effectively avoid collision or interference with other components during the lifting and lowering process of the position-limiting transmission fixture.

[0012] Preferably, the cross section of the top of the handle slot of the position-limiting installation fixture is an isosceles trapezoid, and the bottom end penetrates the high-order part of the position-limiting installation fixture. The lower surface of the top isosceles trapezoid faces upward, so that the handle can be more easily inserted into the handle slot, and the lower half of the handle is placed in the handle slot. The handle slot can limit the opening of the handle, ensuring that the opening size of the handle during the assembly process meets the design requirements, thereby improving the assembly accuracy.

[0013] Preferably, a plurality of mounting holes are provided below the high-order part of the position-limiting mounting fixture, and a plurality of mounting holes are provided at the bottom end of the handle groove. A mounting module is provided on the outside of the position-limiting mounting fixture, which is used to pass through the mounting holes and mount the handle on the barrel wall. The step of the position-limiting mounting fixture can position the end face of the barrel, and the handle can be mounted on the barrel wall while the barrel is positioned, thereby improving production efficiency.

[0014] The beneficial effects of the present invention are as follows: the present invention provides a handle assembly mechanism, which realizes the control of handle deformation by setting a limit transmission fixture 1, a limit transmission fixture 2 and a limit installation fixture, improves production efficiency and assembly quality, reduces costs, realizes automatic control, reduces labor intensity and manual errors, can adapt to handles of different sizes, and has wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 for Figure 1 Enlarged view of point A.

[0017] Figure 3 It is a schematic structural diagram of the position limiting installation fixture of the present invention.

[0018] Figure 4 It is a top view of the present invention.

[0019] Figure markings: 1: handle; 2: limit transmission fixture 1; 2.1: side panel; 2.1.1: limit slot; 3: pneumatic finger; 4: back panel; 5: down-pressing module; 5.1: down-pressing cylinder; 5.2: down-pressing plate; 6: limit transmission fixture 2; 7: lifting cylinder; 8: advance and retreat cylinder; 9: limit installation fixture; 9.1: handle slot; 9.2: installation hole. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 3As shown, the handle assembly mechanism of the present invention is mainly composed of three key components: a limit transmission fixture 2, a limit transmission fixture 6 and a limit installation fixture 9. These components work together to ensure the precise assembly and deformation control of the handle 1. The limit transmission fixture 2 is composed of a main board and two side plates 2.1 located on both sides of the main board, and the two side plates 2.1 are perpendicular to the main board. This design not only provides a stable support structure, but also simplifies the assembly process. A downward pressure module 5 is provided between the two side plates 2.1, which is a key component for realizing the deformation of the handle 1 during the entire assembly process. The downward pressure module 5 is composed of a downward pressure cylinder 5.1 and a downward pressure plate 5.2. The downward pressure cylinder 5.1 is responsible for providing the necessary downward pressure, while the downward pressure plate 5.2 directly acts on the handle 1 to cause it to undergo the desired deformation. The limit transmission fixture 2 6 is designed as an L-shaped plate, and is provided with two, which are respectively located on both sides of the two side plates 2.1 of the limit transmission fixture 2. One of the side plates of the L-shaped plate is parallel to the side plate 2.1 of the limiting transmission fixture 2. This parallel setting ensures that the conversion of the workstation of the handle 1 can be carried out smoothly, and improves the accuracy and efficiency of assembly. A downward pressing module 5 is provided on the main board between the two side plates 2.1 of the limiting transmission fixture 2, and an arc plate is provided on the top of the main board, and a pneumatic finger 3 is provided on the arc plate. The pneumatic finger 3 is used to rotationally clamp the handle 1, and the arc plate plays a certain supporting role on the handle 1. This design improves the assembly efficiency. The pneumatic finger 3 can accurately control the clamping force to avoid over-clamping or under-clamping of the handle 1, protect the handle 1 from damage, and also ensure the assembly quality. A limiting installation fixture 9 is provided below the two side plates of the limiting transmission fixture 2 and the limiting transmission fixture 2 6, which is used to limit and install the lower half of the handle 1. The main board of the position-limiting transmission fixture 2 is connected to the lifting cylinder 7 on the rear side. The lifting cylinder 7 is set on the support column. A support plate is provided above the support column. The support plate is installed on a large rectangular back plate 4 to provide support for the entire handle assembly mechanism. Baffles are connected to both sides of the lower half of the rectangular back plate 4. The end faces of the baffles exceed the end faces of the position-limiting transmission fixture 2 6 to provide protection for the interior of the handle assembly mechanism. This design not only enhances the stability of the entire assembly mechanism, but also ensures safety during operation.

[0022] like Figure 1 and Figure 2 and Figure 4As shown, the limit transmission fixture 2 is the core component of the entire handle assembly mechanism. The limit transmission fixture 2 is set on the central axis of the entire mechanism. The limit transmission fixture 2 consists of a main board and two side plates 2.1 located on both sides of the main board. The two side plates 2.1 are perpendicular to the main board to form a solid frame structure. The use of this plate not only allows small-batch production of the assembly, but also avoids the high cost of special production molds, thereby saving production costs and improving production efficiency. At the same time, it expands the scope of application, so that the mechanism can adapt to the assembly requirements of handles 1 of different sizes and shapes. And the limit groove 2.1.1 or size can be easily changed according to demand, saving production costs and improving production efficiency. The two side plates 2.1 are respectively provided with two limit grooves 2.1.1. The limit grooves 2.1.1 are rectangular grooves, which are set on the outer side of the side plate 2.1 and one side is open. Such a design not only facilitates the placement of the handle 1, but also realizes the precise limit of the handle 1. The corresponding limiting grooves 2.1.1 on the two side plates 2.1 are on the same horizontal plane, ensuring the stability and consistency of the handle 1 during the transmission process. This design not only improves the accuracy of assembly, but also reduces assembly errors caused by the position offset of the handle 1. An arc plate is provided on the top of the main board of the limiting transmission fixture 2. The length of the arc plate is less than the width of the limiting transmission fixture 2. The arc design fits the curvature of the handle 1 and is used to provide certain support and positioning for the handle 1. This arc design not only improves the stability of the handle 1 during the assembly process, but also helps to protect the handle 1 from damage. A U-shaped plate is provided above the arc plate, and the U-shaped plate is connected to the pneumatic finger 3. A rotating shaft is provided inside the pneumatic finger 3, so that the pneumatic finger 3 can rotate flexibly to achieve the clamping and release of the handle 1. When the handle 1 is clamped by the clamping claws according to the set opening shape in the mold, and then the handle 1 is moved to the limiting groove 2.1.1 above the limiting transmission fixture, the pneumatic finger 3 rotates to clamp the handle 1, and the clamping claws retreat. This process not only improves the efficiency of assembly, but also ensures the stability of the handle 1 during assembly. The precise control of the pneumatic finger 3 ensures that the handle 1 will not be damaged due to excessive clamping force, nor will it be displaced due to insufficient clamping force. A pressing module 5 is provided on the main board of the limiting transmission fixture 2. The pressing module 5 is located below the pneumatic finger 3 and the arc plate, and is a key component for achieving precise deformation of the handle 1. The pressing module 5 includes a pressing cylinder 5.1 and a pressing plate 5.2. The pressing cylinder 5.1 serves as a power source, and the stability and repeatability of the pressing process are ensured by precisely controlling the stroke and pressure of the cylinder. The pressing plate 5.2 is arranged directly below the pressing cylinder 5.1, and is the part that directly contacts the handle 1 and applies pressure. The lower pressing plate 5.2 is composed of two rectangular plates, and the rectangular plate close to the outer side is bent inward at a certain angle to avoid collision with other components during the pressing process.The width of the lower pressure plate 5.2 is smaller than the width of the side plate 2.1 of the position-limiting transmission fixture 2, ensuring that the lower pressure plate 5.2 will not collide or interfere with the surrounding components when the position-limiting transmission fixture 2 is lifted or lowered. Two strip-shaped mounting holes are provided below the main board of the position-limiting transmission fixture 2 for mounting the connecting plate, which is connected to the lifting cylinder 7 through the connecting column. The lifting cylinder 7 is used to drive the position-limiting transport fixture 1 to move up and down, thereby realizing the transportation, limiting and deformation of the handle 1, so that each step in the assembly process of the handle 1 can be precisely controlled, thereby improving the efficiency and quality of the entire assembly process.

[0023] like Figure 1 , Figure 2 As shown, the position-limiting transmission jig 2 6 is composed of an L-shaped plate. Two position-limiting transmission jigs 2 6 are provided in the present invention. This design not only provides stable support, but also simplifies the assembly process. In the present invention, two position-limiting transmission jigs 2 6 are provided, which are respectively located on both sides of the two side plates 2.1 of the position-limiting transmission jig 1 2. Such a layout ensures the continuity and stability of the transmission path of the handle 1. In the initial state, the top and end of the position-limiting transmission jig 2 6 are located on the same horizontal plane as the top and end of the position-limiting transmission jig 1 2, and one side plate is parallel to the two side plates of the position-limiting transmission jig 1 2. Two position-limiting grooves 2.1.1 are provided on one side plate of the position-limiting transmission jig 2 6, and the position-limiting grooves 2.1.1 are located on the same horizontal plane as the corresponding position-limiting grooves 2.1.1 of the position-limiting transmission jig 1 2. This parallel arrangement not only ensures that the conversion of the workstation of the handle 1 can be carried out smoothly, but also improves the accuracy and efficiency of assembly. The design of the limit groove 2.1.1 enables the handle 1 to be accurately positioned and fixed during the transmission process, thereby ensuring the accuracy and stability of the assembly. Two strip-shaped mounting holes are provided on the other side plate of the limit transmission fixture 2 6 for installing the connecting plate, which is connected to the advance and retreat cylinder 8. The advance and retreat cylinder 8 is located on both sides of the bottom end of the lifting cylinder 7 and is used to drive the limit transmission fixture 2 6 to move forward and backward, thereby realizing the position conversion of the handle 1 from the upper limit groove 2.1.1 to the lower limit groove 2.1.1, making way for the pressing module 5, so that the pressing module 5 can smoothly press down and deform the handle 1, thereby realizing the precise assembly of the handle 1. In addition, the setting of the limit transmission fixture 2 6 also has an emergency function. When the limit transmission fixture 2 produces an error in operation, or the handle 1 is dislocated from the limit transmission fixture 2, the advance and retreat cylinder 8 can work quickly to push the limit transmission fixture 2 6 forward. This timely adjustment can effectively hold the handle 1, preventing the handle 1 from being entangled in other mechanisms after being dislocated, thereby avoiding possible equipment damage and production interruption.

[0024] like Figure 3As shown, the limit installation fixture 9 is a key component in the assembly mechanism of the handle 1. There are two limit installation fixtures 9, which are respectively located on both sides below the two side plates 2.1 of the limit transmission fixture 2. The limit installation fixture 9 is a step-shaped design, and a handle groove 9.1 is provided at the top. The top cross-section of the handle groove 9.1 is an isosceles trapezoid, and the long bottom side of the isosceles trapezoid faces upward, which is convenient for the insertion of the handle 1. The bottom end passes through the high-order part of the limit installation fixture 9, and the lower half of the handle 1 is placed in the handle groove 9.1. The handle groove 9.1 can limit the opening of the handle 1. This limit design ensures the stability of the handle 1 during the assembly process, prevents the handle 1 from shifting or deflecting during the assembly process, thereby ensuring the accuracy and quality of the assembly. A mounting hole 9.2 is provided on both sides of the handle groove 9.1 below the high-order part of the limit installation fixture 9. The mounting module passes through the mounting hole 9.2 to mount the handle 1 on the barrel wall. The lower part of the high-order part of the position-limiting installation fixture 9 can position the end face of the barrel. A mounting hole 9.2 is provided at the bottom of the handle groove 9.1. The bottom can position the end face of the handle 1 and install the handle 1 on the barrel wall. This design ensures the precise position of the handle 1 on the barrel wall and improves the overall quality and aesthetics of the product. An installation module is provided on the outside of the position-limiting installation fixture 9 for passing through the mounting hole 9.2 to install the handle 1 on the barrel wall. The position-limiting installation fixture 9 can install the handle 1 on the barrel wall while positioning the barrel, thereby improving production efficiency.

[0025] Working process.

[0026] 1. Handle preparation.

[0027] Before the assembly process begins, all components are in their initial positions. In particular, the limiting transfer jig 2 6 is precisely positioned behind the limiting transfer jig 1 2 to ensure that the handle 1 can be smoothly transferred from one jig to another. This layout not only optimizes space utilization, but also improves the smoothness of assembly. First, the spindle at the front end is equipped with special clamps, which are designed to accurately clamp the handle 1 from the mold according to the preset opening shape. The design of the clamp ensures the precise grasping of the handle 1 and avoids damage to the handle 1 during the grasping process. After the clamp successfully clamps the handle 1, it moves the handle 1 to the upper limiting groove 2.1.1 of the limiting transfer jig 1 2. This movement process requires high precision to ensure that the handle 1 can be accurately placed in the limiting groove 2.1.1. The top end moves to the side of the curved plate, and the contact between the top end of the handle 1 and the curved plate not only ensures the stability of the handle 1, but also provides an accurate reference point for subsequent clamping and pressing down. During this process, the positioning accuracy of the handle 1 is crucial to ensure that the subsequent assembly process can proceed smoothly.

[0028] 2. Clamp the handle.

[0029] After the handle 1 is accurately placed in the limit groove 2.1.1 above the limit transmission fixture 2, the pneumatic finger 3 starts to perform the rotation clamping action. This action is driven by a precise control system to ensure the smooth and precise rotation of the pneumatic finger 3. The design of the pneumatic finger 3 fully considers the shape and material of the handle 1 to ensure that the clamping process is both fast and stable. The rotation clamping action of the pneumatic finger 3 is achieved through the internal rotating shaft. The design of the rotating shaft enables the pneumatic finger 3 to rotate flexibly to achieve the clamping and release of the handle 1. This design not only improves the efficiency of clamping, but also ensures the stability of clamping and prevents the handle 1 from shifting or deflecting during the assembly process. During the clamping process, the pneumatic finger 3 avoids over-clamping or under-clamping of the handle 1 by accurately controlling the clamping force. By accurately controlling the clamping force, not only the handle 1 is protected from damage, but also the assembly quality is ensured. Over-clamping may cause the handle 1 to be deformed or damaged, while under-clamping may cause the handle 1 to be displaced or deflected during assembly.

[0030] 3. Hand position conversion.

[0031] First, the limited transmission fixture 2 starts to move downward under the drive of the lifting cylinder 7. This action is controlled by a precise control system, which ensures the smooth and precise descent of the limited transmission fixture 2. The precise control of the lifting cylinder 7 is the basis for achieving precise transmission of the handle 1. Any slight error may lead to the failure of the subsequent assembly process. When the limited transmission fixture 2 is lowered to the appropriate position, the limit groove 2.1.1 above it is on the same horizontal plane as the limit groove 2.1.1 below the limited transmission fixture 2 6, ensuring the precise alignment of the two limit grooves 2.1.1. Once this position is reached, the lifting cylinder 7 stops working and the limited transmission fixture 2 stops moving. At this time, the limited transmission fixture 2 6 moves forward under the drive of the advance and retreat cylinder 8. The precise control of the advance and retreat cylinder 8 enables the limited transmission fixture 2 6 to smoothly and accurately move the handle 1 from the limit groove 2.1.1 above the limited transmission fixture 2 to the limit groove 2.1.1 below the limited transmission fixture 2 6. During this process, the handle 1 is precisely positioned in the limiting groove 2.1.1 of the limiting transmission fixture 2 6 to prepare for the subsequent assembly process. The handle 1 is moved to the position outside the limiting transmission fixture 2 to make way for the rising of the limiting transmission fixture 2. This position adjustment is to ensure that the limiting transmission fixture 2 will not interfere with the handle 1 during the rising process, thereby ensuring the smoothness of the entire assembly process. Subsequently, the lifting cylinder 7 works again to drive the limiting transmission fixture 2 to rise. When the limiting transmission fixture 2 rises to the limiting groove 2.1.1 below the limiting transmission fixture 2 and the limiting groove 2.1.1 below the limiting transmission fixture 2 6 are at the same position, the lifting cylinder 7 stops working and the limiting transmission fixture 2 stops rising. This precise alignment is the key to ensuring that the handle 1 can smoothly proceed to the next step of assembly. At this time, the advance and retreat cylinder 8 starts working to drive the limiting transmission fixture 2 6 to retreat. This action moves the top of the handle 1 to the bottom of the downward pressure cylinder 5.1, and the two sides move to the limit groove 2.1.1 below the limit transmission fixture 1 2. This precise positioning is the key to ensure that the handle 1 can be correctly pressed down and deformed. The limit transmission fixture 2 6 continues to retreat, so that the handle 1 is separated from the limit groove 2.1.1 below the limit transmission fixture 2 6. This action marks the completion of the transfer process of the handle 1, and is ready for the downward pressure and deformation of the handle 1.

[0032] 4. Press the handle down.

[0033] After the handle 1 is successfully transferred to the limit groove 2.1.1 below the limit installation fixture 9, the limit installation fixture 9 starts to perform the rising action. This action is driven by a precise control system to ensure that the limit installation fixture 9 rises smoothly and accurately to the appropriate height. As the limit installation fixture 9 rises, the lower half of the handle 1 is accurately placed in the handle groove 9.1. The trapezoidal opening design at the top of the handle groove 9.1 ensures that the handle 1 is smoothly assembled into the handle groove 9.1 of the limit installation fixture 9. Next, the pressing module 5 starts to work. The pressing module 5 consists of a pressing cylinder 5.1 and a pressing plate 5.2. The pressing cylinder 5.1 provides the necessary downward force, while the pressing plate 5.2 directly contacts the handle 1 and applies pressure. The start of the pressing module 5 marks the beginning of the deformation process of the handle 1. Under the action of the pressing module 5, the top of the handle 1 is gradually pressed down. This process requires extremely high precision and control to ensure that the deformation of the handle 1 meets the design requirements. Under the downward pressure of the pressing module 5, the handle 1 is squeezed and deformed, so that the opening of the handle 1 becomes larger. This deformation process is completed under the joint limiting action of the limiting transmission fixture and the limiting installation fixture 9. The precise limiting of the limiting transmission fixture and the limiting installation fixture 9 ensures the stability and consistency of the handle 1 during the deformation process, and prevents the handle 1 from being offset or damaged during the deformation process. The pressing height of the pressing module 5 can be controlled to ensure assembly accuracy.

[0034] 5. Bucket positioning and handle installation.

[0035] The end surface of the barrel is positioned below the high-order part of the limit installation fixture 9, and the bottom end of the handle 1 is located on the mounting hole 9.2 at the bottom end of the handle groove 9.1. The mounting module outside the limit installation fixture 9 passes through the mounting hole 9.2 to install the handle 1 on the barrel wall. This synchronous operation greatly improves production efficiency, reduces production time, and reduces production costs.

[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A handle assembly mechanism, characterized in that: It includes a limiting transmission fixture 1 and a plurality of limiting transmission fixtures 2, wherein the limiting transmission fixtures 2 are respectively arranged on both sides of the side plates of the limiting transmission fixture 1, and a pressing module is arranged between the two side plates of the limiting transmission fixture 1; A plurality of limit grooves are arranged on the two side plates of the limit transmission fixture 1, and a plurality of corresponding limit grooves are arranged on the side plate of the limit transmission fixture 2 close to the limit transmission fixture 1; A limiting installation fixture is provided below both sides of the limiting transmission fixture 1. The limiting installation fixture is step-shaped and has a handle groove at the top.

2. A handle assembly mechanism according to claim 1, characterized in that: The limiting transmission fixture 1 is composed of a main board and two side boards located on both sides of the main board, and the two side boards are perpendicular to the main board.

3. A handle assembly mechanism according to claim 1, characterized in that: The second position limiting transmission fixture is an L-shaped plate, and one side plate of the second position limiting transmission fixture is arranged parallel to the side plate of the first position limiting transmission fixture.

4. A handle assembly mechanism according to claim 1 or 3, characterized in that: The first limiting transmission fixture is connected to the lifting cylinder, and the second limiting transmission fixture is connected to the advancing and retreating cylinder.

5. A handle assembly mechanism according to claim 1, characterized in that: A plurality of limiting grooves of the limiting transmission fixture 1 and the limiting transmission fixture 2 are arranged on one side of the side plate, and the limiting grooves are open toward the outside.

6. A handle assembly mechanism according to claim 1 or 5, characterized in that: The limiting groove on the limiting transmission fixture 1 and the corresponding limiting groove on the limiting transmission fixture 2 are on the same horizontal plane.

7. A handle assembly mechanism according to claim 1 or 2 or 3 or 5, characterized in that: A top end of a position limiting transmission fixture is provided with an arc plate, and a pneumatic finger is provided on the arc plate.

8. A handle assembly mechanism according to claim 1, characterized in that: The main body of the pressing module is a pressing cylinder, the bottom end of which is provided with a pressing plate, and the pressing module is arranged below the pneumatic finger.

9. A handle assembly mechanism according to claim 1, characterized in that: The cross section of the top of the handle groove of the limit installation fixture is an isosceles trapezoid, and the bottom end passes through the high-order part of the limit installation fixture.

10. A handle assembly mechanism according to claim 1 or 9, characterized in that: A plurality of mounting holes are arranged at the lower part of the high-order part of the limit mounting fixture, and a plurality of mounting holes are arranged at the bottom end of the handle slot.

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