Bidirectional torsion spring feeding device for lever handle assembly

Abstract

The utility model provides a bidirectional torsion spring feeding device for assembling handles, which comprises a feeding position, a feeding mechanism, a transfer position, a torsion mechanism, a press fitting position, a first moving and taking device, a second moving and taking device, a first dislocation device, a second dislocation device and a double-shaft moving device. The production requirements of handles in different directions can be met without adjustment or reconfiguration, the equipment adaptability and flexibility are improved, the downtime of product switching is shortened, and lean production of handle assembly is promoted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of handle assembly equipment, especially a bidirectional torsion spring feeding device for handle assembly. BACKGROUND

[0002] In a door control system, a handle (also known as a knob) is a key operating component on a door panel, directly serving the opening and closing needs of users. With the continuous development of the market, the design of handles is showing a trend of diversification, especially in the appearance design of the handle and the panel, which exhibits rich creativity. In terms of internal structure, core components such as a clasp, an angular limiting sheet, a torsion spring, and a gasket have gradually formed industry standards to ensure functionality and reliability.

[0003] Among them, as shown in Figure 1 The general structure of a torsion spring includes a main body in a coiled state, and outer hooks and inner hooks provided at the first and last ends of the main body. In different orientations of the handle, the difference in the torsion spring part is that it is horizontally mirror-inverted compared to the torsion spring in the other direction.

[0004] The existing torsion spring automatic feeding device usually adopts a fixed mode, that is, through a specific mechanism, the oriented torsion spring is moved from the feeding position to the assembly position to complete the automatic feeding process. However, when it is necessary to switch to producing handles in different directions, the existing torsion spring feeding device must be adjusted accordingly, including changing the feeding settings, adjusting the limiting tooling, and updating the picking mechanism. This line-changing operation is not only complex and time-consuming but also increases production costs, which is not conducive to efficient and lean management of torsion spring feeding.

[0005] In view of this, the present inventors have specially designed a bidirectional torsion spring feeding device for handle assembly, which gives rise to the present case. SUMMARY

[0006] To solve the above problems, the technical scheme of the utility model is as follows:

[0007] A bidirectional torsion spring feeding device for handle assembly, comprising:

[0008] a feeding position having a first clamping groove capable of carrying a single torsion spring in two directions;

[0009] a feeding mechanism including a hopper and a pushing assembly, the hopper having a second clamping groove capable of stacking and storing torsion springs in two directions, for sequentially delivering the torsion springs in the second clamping groove to the feeding position;

[0010] a transfer position having a third clamping groove capable of carrying a single torsion spring in two directions;

[0011] a torsion mechanism for torsioning the torsion spring on the transfer position to an energy storage state;

[0012] The pressing position is provided with an assembly tool matched with the torsion spring in the energy storage state;

[0013] The first moving device is used for clamping the torsion spring on the feeding position to the transfer position;

[0014] The second moving device is used for moving the torsion spring in the energy storage state on the transfer position to the pressing position;

[0015] The first dislocation device is used for moving the torsion spring in the energy storage state on the transfer position to the second moving device;

[0016] The second dislocation device is used for moving the torsion spring in the energy storage state on the second moving device to the assembly tool to complete the assembly of the torsion spring;

[0017] The double-shaft moving device is used for driving the first moving device and the second moving device to reciprocate between the feeding position, the transfer position and the pressing position.

[0018] Preferably, the feeding mechanism further comprises a feeding support, the pushing assembly comprises a pushing plate slidingly arranged on the top of the feeding support and a first driving mechanism arranged on one side of the feeding support and used for driving the pushing plate to extend and retract, the pushing plate is provided with a first clamping groove with a depth suitable for the thickness of a single torsion spring, the first clamping groove comprises a first inner ring groove suitable for the main body of the torsion spring and two first hook grooves symmetrically arranged on both sides of the first inner ring groove and suitable for the outer hooks of torsion springs in different directions, the hopper is arranged at the retracted position of the first clamping groove, and the extended position of the first clamping groove is the feeding position.

[0019] Preferably, the hopper comprises a second inner ring groove suitable for the main body of the torsion spring and two second hook grooves symmetrically arranged on both sides of the second inner ring groove and suitable for the outer hooks of torsion springs in different directions, the second inner ring groove and the second hook groove vertically penetrate the hopper and the bottom thereof corresponds to the retracted position of the first clamping groove, so that the stacked torsion springs in the hopper can fall into the first clamping groove one by one.

[0020] Preferably, the top of the hopper is concavely recessed downward to form a setback structure, and the setback structure forms a stepped structure with the top of the hopper.

[0021] Preferably, the double-shaft moving mechanism comprises a sliding seat, a second driving mechanism used for driving the sliding seat to horizontally extend and retract, and a third driving mechanism used for driving the sliding seat to vertically extend and retract.

[0022] Preferably, the first moving device is a clamping type finger cylinder, and the two output ends of the finger cylinder are fixed with a pair of parallel clamping jaws.

[0023] Preferably, the second taking-off device comprises a main limiting shaft and an auxiliary stopper, the lower end of the main limiting shaft is recessed inwardly by a positioning groove for positioning the assembly tool, the two sides of the positioning groove are provided with linear first limiting grooves through which the inner hooks of torsion springs in different directions can be limited and matched, and the auxiliary stopper is detachably arranged on one side of the main limiting shaft and used for stopping the outer hook of the torsion spring in the energy storage state so as to keep the torsion spring in the energy storage state.

[0024] Preferably, the second dislocation device comprises a fourth driving mechanism and a pair of shifting pieces, the two shifting pieces are synchronously and slidably arranged along the extension direction of the first limiting groove and at least partially protrude outside the first limiting groove, the output end of the fourth driving mechanism is in transmission connection with the two shifting pieces and is used for driving the two shifting pieces to synchronously slide in and out of the first limiting groove so as to push the torsion spring out of the main limiting shaft.

[0025] Preferably, the intermediate position comprises an intermediate seat and a third clamping groove arranged on the intermediate seat, the third clamping groove comprises a third inner ring groove matched with the main body of the torsion spring and two third hook grooves symmetrically arranged on the two sides of the third inner ring groove and matched with the outer hooks of the torsion springs in different directions.

[0026] Preferably, the torsion mechanism comprises a torsion shaft and a fifth driving mechanism used for driving the torsion shaft to rotate, the top of the torsion shaft penetrates into the third clamping groove and is provided with a second limiting groove along the radial direction, and the second limiting groove is used for limiting and matching with the inner hooks of the torsion springs in different directions so as to drive the torsion spring to be torsionally energized under the driving of the fifth driving mechanism.

[0027] Preferably, the first dislocation device comprises a sixth driving mechanism and an ejection structure in transmission connection with the sixth driving mechanism, the third clamping groove of the intermediate seat is formed with an ejection hole opposite to the position of the ejection structure, and the sixth driving mechanism is used for driving the ejection structure to vertically slide between the position below the intermediate seat and the position protruding from the intermediate seat so as to eject the torsionally energized torsion spring out of the third clamping groove.

[0028] The utility model discloses the beneficial effect as follows:

[0029] The utility model discloses can bear and handle two kinds of directions single torsion spring, under the condition of not needing adjustment or reconfiguration, nimblely deal with the production demand of different direction handle, greatly improve the adaptability and flexibility of equipment, reduce the downtime because of product switching, more favorably handle assembly's lean. DRAWINGS

[0030] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitation on the utility model.

[0031] Among them:

[0032] Figure 1 is a structure diagram of a standard torsion spring in the prior art;

[0033] Figure 2 is a structure diagram of an assembly tool in the prior art;

[0034] Figure 3 is a whole structure diagram of the embodiment one of the utility model;

[0035] Figure 4 is a partial structure diagram of a feeding mechanism in the embodiment one of the utility model;

[0036] Figure 5 is a partial overhead structure diagram of a stock bin in the embodiment one of the utility model;

[0037] Figure 6 is a partial structure diagram of a double-shaft moving device in the embodiment one of the utility model;

[0038] Figure 7 is a partial exploded structure diagram of the double-shaft moving device in the embodiment one of the utility model;

[0039] Figure 8 is a partial structure diagram of a second moving and taking device and a second dislocation device in the embodiment one of the utility model;

[0040] Figure 9 is a partial structure diagram of a first dislocation device and a torsion mechanism in the embodiment one of the utility model;

[0041] Figure 10 is a partial exploded structure diagram of the first dislocation device and the torsion mechanism in the embodiment one of the utility model;

[0042] Figure 11 is a partial exploded and overhead structure diagram of a transfer seat and a torsion spring in the embodiment one of the utility model.

[0043] Label explanation:

[0044] 10, torsion spring; 11, main body; 12, inner hook; 13, outer hook; 20, assembly tool; 21, base; 22, positioning shaft; 23, torsion spring limiting structure; 24, limiting groove; 25, press-fitting position; 30, feeding mechanism; 31, feeding position; 32, first clamping groove; 321, first inner ring groove; 322, first hook groove; 323, first accommodating groove; 33, hopper; 331, second clamping groove; 332, second inner ring groove; 333, second hook groove; 334, observation gap; 335, retreat structure; 34, pushing assembly; 341, pushing plate; 342, first driving mechanism; 35, feeding support; 351, fixed seat; 40, transfer position; 41, transfer seat; 42, third clamping groove; 421, third inner ring groove; 422, third hook groove; 43, second accommodating groove; 44, through hole; 45, ejection hole; 46, auxiliary hole; 50, torsion mechanism; 51, torsion shaft; 511, second limiting groove; 52, fifth driving mechanism; 53, sensing device; 54, sensing structure; 60, first moving device; 61, clamping jaw; 70, second moving device; 71, main limiting shaft; 711, positioning groove; 712, first limiting groove; 72, auxiliary stop; 80, first dislocation device; 81, sixth driving mechanism; 82, ejection structure; 83, lifting plate; 84, through groove; 90, second dislocation device; 91, fourth driving mechanism; 92, push piece; 93, connecting structure; 100, double-shaft moving device; 101, sliding seat; 1011, main seat; 1012, side seat; 102, second driving mechanism; 103, third driving mechanism; 104, moving support; 105, first mounting plate; 106, second mounting plate. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more understandable, the utility model will be described in further detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0046] As Figure 1 shown is a standard torsion spring 10 structure in the prior art, the torsion spring 10 includes a main body 11 in a coiled state and outer hooks 13 and inner hooks 12 arranged at the first and last ends of the main body 11. The difference between the torsion spring 10 part in different orientations is that the horizontal mirror image is opposite to that of the torsion spring 10 in the other direction. In the actual operation process, the torsion spring 10 only needs to be flipped by 180° in the horizontal direction to adapt to the assembly of the handle in the other direction.

[0047] In addition, as Figure 2As shown, the handle assembly process needs to use assembly tool 20, which generally includes a base 21, a positioning shaft 22 provided on the upper end of the base 21, and a torsional spring limiting structure 23 provided around one side of the positioning shaft 22. The positioning shaft 22 is radially symmetrical and has two limiting grooves 24. The inner hook 12 of the torsional spring 10 is clamped into one of the limiting grooves 24 after being sleeved on the positioning shaft 22, and the outer hook 13 of the torsional spring 10 is limited by the torsional spring limiting structure 23, thereby completing the assembly process of the torsional spring 10 on the assembly tool 20.

[0048] The torsional spring 10 is generally assembled in an energy storage state on the assembly tool 20, so the torsional spring limiting structure 23 is generally provided on one side of the line connecting the two limiting grooves 24, so that the torsional spring 10 on the assembly tool 20 can be kept in an energy storage state, facilitating subsequent movement of the torsional spring 10 from the assembly tool 20 into the handle parts.

[0049] When another direction handle assembly is used, the above-mentioned assembly tool 20 does not need to be replaced. The inner hook 12 of the torsional spring 10 of another direction is clamped into another limiting groove 24, and the outer hook 13 of the torsional spring 10 is limited on the torsional spring limiting structure 23 in another direction.

[0050] Therefore, when assembling torsional springs 10 of different direction handles, the difficulty lies in how to enhance the versatility of the torsional spring 10 feeding device to make it adapt to the assembly of two different direction handles at a minimum cost. In order to solve the above-mentioned problems, the scheme of the present application is as follows: Embodiment

[0051] Please refer to Figures 3 to 11 It is a bidirectional torsional spring feeding device for handle assembly, which is the best embodiment of the present application, comprising a feeding position 31, a feeding mechanism 30, a transfer position 40, a torsion mechanism 50, a press-fitting position 25, a first moving and taking device 60, a second moving and taking device 70, a first dislocation device 80, a second dislocation device 90, and a double-shaft moving device 100.

[0052] As shown in Figure 3 , 4 The feeding position 31 has a first clamping groove 32 capable of bearing a single torsional spring 10 of two directions;

[0053] The feeding mechanism 30 comprises a hopper 33 and a pushing assembly 34. The hopper 33 has a second clamping groove 331 capable of stacking and storing torsional springs 10 of two directions, and is used to deliver the torsional springs 10 in the second clamping groove 331 to the feeding position 31 one by one.

[0054] Specifically, in the present embodiment, the hopper 33 is in the shape of a vertical long rectangular body. The hopper 33 is provided with a second clamping groove 331 for stacking and accommodating the torsional spring 10 along the vertical direction.

[0055] As shown in Figure 4 , 5 , in order to adapt to torsion springs 10 of different directions, the second clamping groove 331 is designed as follows: a second inner ring groove 332 in the middle and in a circular shape, and second hook grooves 333 symmetrically arranged on both sides of the second inner ring groove 332 and in an arc shape, the shape of the second inner ring groove 332 is adapted to the main body 11 of the torsion spring 10 so as to facilitate the clamping of the main body 11 of the torsion spring 10, the second hook grooves 333 are directly connected through the second inner ring groove 332, and the shape of the second hook grooves 333 and the connecting position thereof with the second inner ring groove 332 is exactly adapted to the shape of the outer hook 13 of the torsion spring 10 of the same direction, so that the torsion spring 10 of the same direction can be smoothly placed into the second clamping groove 331 and be fully limited, and the torsion springs 10 of the same direction are stacked one by one in the second clamping groove 331, and the lower end opening of the second clamping groove 331 is used for the falling of the torsion spring 10; at the same time, the torsion spring 10 of the opposite direction only needs to clamp its outer hook 13 into the second hook groove 333 on the other side, so as to realize the stacking and feeding thereof, so that the material bin 33 can directly adapt to the feeding of the torsion springs 10 of two different directions, and the versatility is fully enhanced.

[0056] As shown in Figure 4 , 5 , part of the edge of the second inner ring groove 332 directly intersects with the outer side wall of the material bin 33, so that the side wall of the material bin 33 exposes an observation gap 334 which is distributed along the vertical direction and directly communicates with the inner side of the second inner ring groove 332, and the gap of the observation gap 334 is arranged to be much smaller than the diameter of the main body 11 of the torsion spring 10, so as to avoid the falling of the torsion spring 10 from the observation gap 334, so that through the arrangement of the observation gap 334, the operator can observe the consumption progress of the torsion spring 10 and timely supplement the feeding.

[0057] As shown in Figure 3 , 4 , the top part of the material bin 33 is concavely provided with a setback structure 335, and the setback structure 335 forms a stepped shape with the top of the material bin 33, in the embodiment, the setback structure 335 is located on one side of the observation gap 334, and a setback surface is formed between the setback structure 335 and the top of the material bin 33, and the setback surface is exactly located at the position passing through the second hook groove 333, so that the setback structure 335 can realize the guiding and positioning of the torsion spring 10, thereby facilitating the operator to place the torsion spring 10 into the second clamping groove 331 of the material bin 33.

[0058] As shown in Figure 3 , 4 , the feeding mechanism 30 further comprises a feeding support 35, and the pushing assembly 34 comprises a pushing plate 341 slidingly arranged on the top of the feeding support 35 and a first driving mechanism 342 arranged on one side of the feeding support 35 and used for driving the pushing plate 341 to slide.

[0059] The top of the feeding support 35 is fixed with horizontally distributed fixing seats 351, and the pushing plate 341 is slidingly assembled on the fixing seats 351. The sliding process of the pushing plate 341 can be guided and limited by guide rails, limiting surfaces and the like to enhance the stability of the sliding process. No limitation is made herein.

[0060] The first driving mechanism 342 is a linear cylinder which is fixedly arranged on the fixing seat 351 and has an output shaft fixedly connected with the pushing plate 341. Thus, the pushing plate 341 can be driven to reciprocatingly slide along the horizontal direction by the extension and retraction of the output shaft of the cylinder.

[0061] The feeding bin 33 is locked above the fixing seat 351 by the feeding support 35, and the gap between the bottom of the feeding bin 33 and the fixing seat 351 is just for the pushing plate 341 to slide through.

[0062] As shown in Figure 4 , in order to realize the feeding of the torsion springs 10 one by one from the feeding bin 33, the upper end surface of the pushing plate 341 and located away from the first driving mechanism 342 is provided with a first clamping groove 32 with a depth adapted to the thickness of a single torsion spring 10. The first clamping groove 32 comprises a first inner ring groove 321 adapted to the main body 11 of the torsion spring 10 and two first hook grooves 322 symmetrically arranged on both sides of the first inner ring groove 321 and adapted to the outer hooks 13 of the torsion springs 10 in different directions. The first hook grooves 322 are in communication with the first inner ring groove 321.

[0063] When the first driving mechanism 342 drives the pushing plate 341 to be in the retracted position, the first clamping groove 32 is opposite to the second clamping groove 331 in position. The overall shape of the first clamping groove 32 and the second clamping groove 331 is adapted, so that the torsion spring 10 can fall into the first clamping groove 32 one by one from the bottom of the feeding bin 33 and the outer hook 13 of the torsion spring 10 can be clamped into the corresponding first hook groove 322, thereby completing the preliminary feeding of the torsion spring 10.

[0064] Subsequently, when the first driving mechanism 342 drives the pushing plate 341 to be in the extended position, the first clamping groove 32 at this position is the feeding position 31. During the movement of the pushing plate 341 towards the extended position, since the other positions of the pushing plate 341 are flat surfaces, the torsion spring 10 at the lower end of the feeding bin 33 is stopped by the surface of the pushing plate 341, thereby avoiding falling. Thus, the torsion spring 10 in the feeding bin 33 can be transported one by one to the feeding position 31 by the reciprocating extension and retraction of the pushing plate 341, thereby facilitating the removal in the subsequent process.

[0065] The transfer position 40 has a third clamping groove 42 which can bear two torsion springs 10 in different directions.

[0066] Specifically, as shown in Figure 9 , 10As shown in Figure 11, the transfer position 40 includes a transfer seat 41 and a third slot 42 provided on the transfer seat 41. The third slot 42 includes a third inner ring groove 421 adapted to the torsion spring 10 body 11 and two third hook grooves 422 symmetrically provided on both sides of the third inner ring groove 421 and adapted to the outer hooks 13 of the torsion spring 10 in different directions. The third hook grooves 422 are connected to the third inner ring groove 421.

[0067] like Figure 3 , 6 As shown in Figure 7, in order to realize the flow of the torsion spring 10 between the loading position 31 and the intermediate transfer position 40, this embodiment uses a first transfer device 60 and a dual-axis moving device 100, as detailed below:

[0068] First, such as Figure 6 , 7 As shown, the dual-axis moving device 100 serves as the basis for movement and includes a sliding base 101 as the mounting base, a second drive mechanism 102 for driving the sliding base 101 to move horizontally and telescopically, and a third drive mechanism 103 for driving the sliding base 101 to move vertically and telescopically. To achieve the mounting and fixing of the second drive mechanism 102 and the third drive mechanism 103, a moving bracket 104 supports and fixes them. The top of the moving bracket 104 is provided with a first mounting plate 105 arranged horizontally. The first drive mechanism 342 is positioned along the horizontal direction of the first mounting plate 105. A linear cylinder is provided, and a second mounting plate 106 is fixed to the output end of the linear cylinder. The second drive mechanism 102 is a linear cylinder arranged vertically along the second mounting plate 106. The sliding seat is installed and fixed to the output end of the second drive mechanism 102. Thus, by the extension and retraction drive of the first drive mechanism 342 and the second drive mechanism 102, the sliding seat can move in both the horizontal and vertical directions. By setting the moving coverage surface of the sliding seat on one side of the line connecting the loading position 31 and the intermediate position 40, the moving basis for the torsion spring 10 to move from the loading position 31 to the intermediate position 40 can be realized.

[0069] The linear cylinders of the first drive mechanism 342 and the second drive device can be rod cylinders, rodless cylinders, or a combination of both; no restrictions are imposed here.

[0070] like Figure 6 , 7As shown, the sliding seat comprises a main seat 1011 and a side seat 1012 extending along one side of the main seat 1011, the first pick-up device 60 and the second pick-up device 70 are arranged on the side seat 1012 and the main seat 1011 respectively, the distance between the first pick-up device 60 and the second pick-up device 70 is equal to the distance between the loading position 31 and the transfer position 40, and the distance between the transfer position 40 and the press-fitting position 25 is equal to the extension stroke of the first driving mechanism 342. When the first driving mechanism 342 is extended, the main seat 1011 and the second pick-up device 70 are located directly above the transfer position 40, so that when the first driving mechanism 342 is extended, the second pick-up device 70 is located directly above the transfer position 40, and the first pick-up device 60 is located directly above the loading position 31 under the extension of the side seat 1012. When the first driving mechanism 342 is retracted, the second pick-up device 70 is moved to be directly above the press-fitting position 25, and the first pick-up device 60 is moved to be directly above the transfer position 40, so as to realize the cyclic movement of the first pick-up device 60 and the second pick-up device 70 between the loading position 31, the transfer position 40 and the press-fitting position 25.

[0071] In the embodiment, the loading position 31, the transfer position 40 and the press-fitting position 25 are located at the same horizontal height, and the extension stroke of the second driving device is just enough to enable the first pick-up device 60 and the second pick-up device 70 to move to the horizontal height where the loading position 31, the transfer position 40 and the press-fitting position 25 are located.

[0072] As shown in Figure 6 , 7 The first pick-up device 60 is a clamping type finger cylinder, and a pair of parallel clamping jaws 61 are fixed to the two output ends of the finger cylinder. The first pick-up mechanism is fixedly installed on the side seat 1012, and the two clamping jaws 61 extend along the lower edge of the finger cylinder.

[0073] As shown in Figure 4 , 9 On the pushing plate 341, a first displacement groove 323 is formed radially along the second inner ring groove 332 and symmetrically on the two sides of the second hook groove 333, and the depth of the first displacement groove 323 is greater than that of the second inner ring groove 332. Meanwhile, on the transfer seat 41, a second displacement groove 43 is formed radially along the third inner ring groove 421 and symmetrically on the two sides of the third hook groove 422, and the depth of the second displacement groove 43 is greater than that of the third inner ring groove 421.

[0074] The first and second displacement slots 323 and 43 are used for the two clamping jaws 61 of the finger cylinder to displace, and the design length of the first and second displacement slots 323 and 43 should meet the requirement that the two clamping jaws 61 do not touch the torsion spring 10 when they are placed in the expanded state, and the two clamping jaws 61 can clamp the two sides of the torsion spring 10 in the radial direction when they are in the contracted state, so as to cooperate with the expansion and contraction of the second driving mechanism 102 to take the torsion spring 10 from the loading position 31, and cooperate with the expansion and contraction of the first driving mechanism 342 to move the torsion spring 10 to above the transfer position 40, and then cooperate with the expansion and contraction of the second driving mechanism 102 to lower the torsion spring 10 into the third clamping slot 42 of the transfer seat 41, when the torsion spring 10 enters the third clamping slot 42, the two clamping jaws 61 are inserted into the two second displacement slots 43 at the same time, and the outer hook 13 on the outside of the torsion spring 10 is just placed into the third hook slot 422, and after the two clamping jaws 61 are loosened, the torsion spring 10 can be lifted along the second displacement slot 43, and the circulation of the torsion spring 10 between the loading position 31 and the transfer position 40 is completed.

[0075] In all the above processes, the state of the torsion spring 10 is in a relaxed state, in order to realize the torsion of the torsion spring 10, so that it changes from the relaxed state to the energy storage state in the transfer position 40, the embodiment is realized by the following way:

[0076] As shown in Figure 9 , 10 , 11, a through hole 44 with a smaller diameter is provided in the center of the inner bottom of the third inner ring groove 421, and the diameter of the through hole 44 should be adapted to the size of the circular area on the inside of the main body 11 of the torsion spring 10, so that when the torsion spring 10 is placed, the circular area on the inside of the main body 11 of the torsion spring 10 is just opposite to the through hole 44.

[0077] Combined Figure 10 , the torsion mechanism 50 includes a torsion shaft 51 and a fifth driving mechanism 52 for driving the rotation of the torsion shaft 51, the outer diameter of the torsion shaft 51 is adapted to the through hole 44, and after the torsion shaft 51 is connected with the fifth driving mechanism 52, it is in the state of protruding out of the through hole 44 in the normal state, so that when the torsion spring 10 is placed in the third clamping slot 42, the inside of the main body 11 of the torsion spring 10 is just sleeved on the outer circumferential side of the torsion shaft 51.

[0078] In addition, a second limiting groove 511 in a straight line type is provided in the radial direction of the top surface of the torsion shaft 51, and the depth of the second limiting groove 511 in the axial direction of the torsion shaft 51 should be at least flush with the bottom surface of the third inner ring groove 421, and the design position of the second limiting groove 511 should be such that when the torsion spring 10 is placed, the outer hook 13 on the outside of the torsion spring 10 is just placed into the third hook slot 422, and the inner hook 12 on the inside of the torsion spring 10 is just placed into one end of the second limiting groove 511, so as to drive the inner hook 12 of the torsion spring 10 to twist the torsion spring 10 by the rotation of the fifth driving mechanism 52, and finally twist it to the energy storage state.

[0079] When the torsion spring 10 in the other direction is placed in the third clamping groove 42, the outer hook 13 of the torsion spring 10 is just placed in the third hook groove 422 on the other side, and the inner hook 12 of the torsion spring 10 is just placed in the other end of the second limiting groove 511, so that the fifth driving mechanism 52 is reversed, that is, the energy storage of the torsion spring 10 in the direction can be realized. Therefore, the structure design of the above-mentioned transfer seat 41 and the torsion shaft 51 can directly adapt to the temporary storage and energy storage of the torsion spring 10 in two different directions, and the versatility of the torsion spring 10 feeding mechanism 30 is improved.

[0080] In combination Figure 10 In order to cooperate with the fifth driving mechanism 52 to control the torsion limit of the torsion spring 10, three detection points are arranged around the periphery of the torsion shaft 51, and corresponding sensing devices 53 are arranged on the three detection points, and the torsion shaft 51 is provided with a sensing structure 54 which is in sensing cooperation with the sensing device 53, when the sensing structure 54 rotates to the corresponding position, it is sensed by the sensing device 53, thereby controlling the rotation limit of the fifth driving mechanism 52.

[0081] Among them, the first point is used as the initial position, which corresponds to the initial position of the second limiting groove 511 when the relaxed torsion spring 10 is placed in the third clamping groove 42. On this basis, a reference line is formed by connecting the center of the torsion shaft 51 and the first point, and the other two points are arranged on both sides of the reference line, and the two points correspond to the instantaneous position of the second limiting groove 511 after the torsion energy storage of the torsion spring 10 in different directions is completed. Therefore, through the cooperation of the three points, the three sensing devices 53 and the sensing structure 54, the torsion energy storage process of the torsion spring 10 can be accurately controlled, and the energy storage process of the torsion spring 10 in two different directions can be adapted without additional adjustment and setting, and the versatility of the torsion mechanism 50 is fully improved.

[0082] In the embodiment, the fifth driving mechanism 52 can be a general motor, a servo motor, a gear and rack mechanism, etc. which can realize rotation control. In the embodiment, the servo motor is preferred, but it is not limited to the fifth driving mechanism 52.

[0083] In the embodiment, the sensing device 53 and the sensing structure 54 are preferably photoelectric sensors and shielding pieces. The shielding pieces are moved to the sensing path of the photoelectric sensor by following the rotation of the torsion shaft 51, so as to trigger the sensing state of the photoelectric sensor. In some other embodiments, the sensing device 53 can be replaced by a proximity sensor, a contact switch, etc., which is not limited herein.

[0084] In order to realize the ejection of the torsion spring 10 in the torsion state from the third clamping groove 42 and smoothly transfer it to the second moving device 70, the embodiment specifically realizes it in the following way:

[0085] As Figure 11As shown, the bottom surface of the third inner ring groove 421 of the intermediate transfer seat 41 is provided with a plurality of ejection holes 45, and the position of the ejection hole 45 should be covered by the main body 11 of the torsional spring 10. In order to improve stability, the ejection hole 45 is a plurality of circular holes uniformly distributed around the circumferential side of the third inner ring groove 421.

[0086] As shown in the drawings, Figure 9 , 10 The first dislocation device 80 includes a sixth driving mechanism 81 and an ejection structure 82 in transmission connection with the sixth driving mechanism 81, and the sixth driving mechanism 81 is used to drive the ejection structure 82 to vertically extend and retract to eject the torsional spring 10 in the torsional energy storage state from the second clamping groove 331. In the embodiment, the ejection structure 82 is an ejection shaft, and the size of the ejection shaft is adapted to the ejection hole 45, so as to facilitate the ejection of the torsional spring 10 from the bottom of the ejection hole 45 into the third inner ring groove 421.

[0087] In order to further improve the stability of the torsional spring 10 when being ejected, the ejection shaft is provided with three ejection shafts, which are uniformly distributed around the circumferential side of the inner ring groove. Through the contact of the three points with the main body 11 of the torsional spring 10 at the same time, the torsional spring 10 is stably ejected from the third clamping groove 42.

[0088] As shown in the drawings, Figure 9 , 10 In order to simplify the overall equipment, the three ejection shafts are fixed by a lifting plate 83, and a through groove 84 through which the common torsion shaft 51 passes is formed on the lifting plate 83 and located between the three ejection shafts. The sixth driving mechanism 81 is provided with two groups, which are respectively distributed on the two sides of the fifth driving mechanism 52. The output ends of the sixth driving mechanism 81 are respectively fixedly connected to the two sides of the lifting plate 83, so that the first dislocation device 80 and the torsional mechanism 50 can be integrated below the intermediate transfer seat 41, and the equipment volume is simplified.

[0089] In the embodiment, the sixth driving mechanism 81 is preferably a linear cylinder or other alternative telescopic mechanism, which is not limited here.

[0090] In order to smoothly transfer the torsional spring 10 in the energy storage state on the intermediate transfer seat 40 to the second moving device 70 and maintain the energy storage state of the torsional spring 10, the embodiment is realized by the following way:

[0091] As shown in the drawings, Figure 7 , 8As shown, the second taking device 70 includes a main limiting shaft 71 and an auxiliary stop 72, the lower end of the main limiting shaft 71 is recessed inwardly to a positioning groove 711 for positioning the assembly tool 20, the two sides of the positioning groove 711 are provided with a linear first limiting groove 712 for limiting the inner hook 12 of the torsional spring 10 in different directions, and the auxiliary stop 72 is rod-shaped and extends beyond the bottom surface of the main limiting shaft 71, the auxiliary stop 72 is detachably fixed on one side of the main limiting shaft 71, and is used for stopping the outer hook 13 of the torsional spring 10 in the energy storage state to keep the torsional spring 10 in the energy storage state.

[0092] After the torsional spring 10 is torsionally stored, the second limiting groove 511 on the torsional shaft 51 is parallel to the first limiting groove 712, and the auxiliary stop 72 is opposite the bending area of the third hook groove 422, and the shape of the auxiliary stop 72 is adapted to the bending part of the third hook groove 422, so that when the torsional spring 10 in the torsional state is lifted from the third clamping groove 42, the inner hook 12 on the inner side of the torsional spring 10 can be smoothly transferred from the second limiting groove 511 to the corresponding end of the first limiting groove 712 of the main wire shaft, and the outer hook 13 on the outer side of the torsional spring 10 is transferred to the auxiliary stop 72 and hooked on the auxiliary stop 72, so that the torsional spring 10 in the energy storage state is smoothly transferred to the main limiting shaft 71.

[0093] As shown in Figure 11 , in order to cooperate with the auxiliary stop 72 to penetrate into the third clamping groove 42, the inner bottom surface of the third clamping groove 42 is provided with an auxiliary hole 46 opposite the position of the auxiliary stop 72, and for the torsional spring 10 in different directions, the auxiliary stop 72 only needs to be locked to the other side of the main limiting shaft 71 in the axial direction, and for the auxiliary hole 46, only two auxiliary holes 46 need to be symmetrically arranged on the two radial sides of the third inner ring groove 421 in the third clamping groove 42, so that the penetration process of the auxiliary stop 72 during assembly of the torsional spring 10 in different directions can be adapted.

[0094] In order to realize the pushing out of the torsional spring 10 in the energy storage state on the main limiting shaft 71 and make it smoothly enter the assembly tool 20, the present embodiment is realized by the following way:

[0095] As shown in Figure 6 , 7 , 8, the second dislocation device 90 includes a fourth driving mechanism 91 and a pair of pushers 92, the pusher 92 is long and the two pushers 92 are synchronously slidably arranged along the extension direction of the first limiting groove 712 and at least partially protrude outside the first limiting groove 712, the output end of the fourth driving mechanism 91 is in transmission connection with the two pushers 92, and is used for driving the two pushers 92 to synchronously slide along the first limiting groove 712 to push the torsional spring 10 out of the main limiting shaft 71.

[0096] Specifically, the fourth driving mechanism 91 is fixedly installed on the upper side of the main base 1011, and the output end thereof faces downward. The two pokers 92 are fixedly connected to the output end of the fourth driving mechanism 91 through the same connecting structure 93, and the lower ends of the two pokers 92 are kept flush at this time. Thus, the extension and retraction of the fourth driving mechanism 91 can realize the extension and retraction of the two pokers 92 in the vertical direction of the two first limiting grooves 712.

[0097] In order to realize the ejection of the torsion spring 10 from the main limiting shaft 71, the extension length of the poker 92 is designed to form a space capable of accommodating at least one torsion spring 10 between the bottom of the poker 92 and the bottom surface of the main limiting shaft 71 when the fourth driving mechanism 91 is retracted. Thus, the space can accommodate the torsion spring 10 during the removal of the torsion spring 10. When the fourth driving mechanism 91 is extended, the lower end of the poker 92 is beyond the bottom surface of the main limiting shaft 71, so that the torsion spring 10 can be pushed down from the main limiting shaft 71 and smoothly transferred to the assembly tool 20.

[0098] In the embodiment, the fourth driving mechanism 91 is preferably a linear cylinder, or other alternative extension and retraction mechanisms can be used, which are not limited herein.

[0099] The press-fitting position 25 has the assembly tool 20 matched with the torsion spring 10 in the energy storage state.

[0100] In combination with the specific structure of the assembly tool 20, when the torsion spring 10 is moved to the press-fitting position 25 by the second removal device 70, the positioning groove 711 on the bottom surface of the main limiting shaft 71 is opposite to the positioning shaft 22 on the upper end surface of the base 21 of the assembly tool 20, the first limiting groove 712 is opposite to the limiting groove 24, and the auxiliary stop 72 is opposite to the torsion spring limiting structure 23. Thus, the torsion spring 10 can be smoothly transferred to the assembly tool 20. Embodiment

[0101] A two-way torsion spring feeding device for handle assembly, which is different from the first embodiment in that the double-shaft moving device 100 includes a sliding base 101, a first driving mechanism 342 for driving the sliding base 101 to move horizontally, and two separate second driving mechanisms 102 fixed to two different positions of the sliding base 101, and the first removal device 60 and the second removal device 70 are arranged at the output ends of the two second driving mechanisms 102.

[0102] Thus, the horizontal movement of the first removal device 60 and the second removal device 70 is controlled by the first driving mechanism 342, and the extension and retraction of the first removal device 60 and the second removal device 70 in the vertical direction is controlled by the two second driving mechanisms 102.

[0103] The first driving mechanism 342 and the second driving mechanism 102 can be selected from the same linear cylinder, a screw rod mechanism or a combination thereof, and are not limited herein.

[0104] The utility model discloses the beneficial effect is as follows:

[0105] The utility model discloses can bear and handle two kinds of direction's single torsion spring 10, under the condition of not needing adjustment or reconfiguration, nimblely deal with the production demand of different direction handle, greatly improved the adaptability and flexibility of equipment, reduced the downtime because of product switching, more favorably handle assembly's lean.

[0106] The utility model has been described exemplarily above in connection with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A two-way torsion spring loading device for knob assembly, characterized in that, The application relates to a torsion spring loading and assembling device, which comprises the following parts: an upper loading position (31) provided with a first clamping groove (32) capable of loading a single torsion spring (10) in two directions; an upper loading mechanism (30) comprising a material bin (33) and a pushing assembly (34), wherein the material bin (33) is provided with a second clamping groove (331) capable of stacking and storing the torsion springs (10) in two directions, and the second clamping groove (331) is used for conveying the torsion springs (10) in the second clamping groove (331) to the upper loading position (31) one by one; a transfer position (40) provided with a third clamping groove (42) capable of loading a single torsion spring (10) in two directions; a torsion mechanism (50) used for torsioning the torsion spring (10) on the transfer position (40) to an energy storage state; a pressing position (25) provided with an assembling tool (20) matched with the torsion spring (10) in the energy storage state; a first moving and taking device (60) used for clamping the torsion spring (10) on the upper loading position (31) to the transfer position (40); a second moving and taking device (70) used for moving and taking the torsion spring (10) in the energy storage state on the transfer position (40) to the pressing position (25); a first dislocation device (80) used for moving and taking the torsion spring (10) in the energy storage state on the transfer position (40) to the second moving and taking device (70); a second dislocation device (90) used for moving and taking the torsion spring (10) in the energy storage state on the second moving and taking device (70) to the assembling tool (20) to complete the assembling of the torsion spring (10); and a double-shaft moving device (100) used for driving the first moving and taking device (60) and the second moving and taking device (70) to reciprocate between the upper loading position (31), the transfer position (40) and the pressing position (25).

2. The two-way torsion spring loading device for knob assembly according to claim 1, wherein, The upper loading mechanism (30) further comprises an upper loading support (35), the pushing assembly (34) comprises a pushing plate (341) slidingly arranged on the top of the upper loading support (35) and a first driving mechanism (342) arranged on one side of the upper loading support (35) and used for driving the pushing plate (341) to slide in and out, the pushing plate (341) is provided with a first clamping groove (32) with a depth matched with the thickness of the single torsion spring (10), the first clamping groove (32) comprises a first inner ring groove (321) matched with the main body (11) of the torsion spring (10) and two first hook grooves (322) symmetrically arranged on the two sides of the first inner ring groove (321) and matched with the outer hooks (13) of the torsion springs (10) in different directions, the material bin (33) is arranged at the retracted position of the first clamping groove (32), and the extended position of the first clamping groove (32) is the upper loading position (31).

3. The two-way torsion spring loading device for knob assembly according to claim 2, wherein, The material bin (33) comprises a second inner ring groove (332) matched with the main body (11) of the torsion spring (10) and two second hook grooves (333) symmetrically arranged on the two sides of the second inner ring groove (332) and matched with the outer hooks (13) of the torsion springs (10) in different directions, the second inner ring groove (332) and the second hook grooves (333) vertically penetrate through the material bin (33) and the bottoms thereof correspond to the retracted position of the first clamping groove (32) so that the stacked torsion springs (10) in the material bin (33) can fall into the first clamping groove (32) one by one.

4. The two-way torsion spring loading device for knob assembly according to claim 1, wherein, The double-shaft moving device comprises a sliding seat (101), a second driving mechanism (102) for driving the sliding seat (101) to move horizontally and telescopically, and a third driving mechanism (103) for driving the sliding seat (101) to move vertically and telescopically.

5. The two-way torsion spring loading device for knob assembly according to claim 1, wherein, The first picking device (60) is a clamping type finger cylinder, and a pair of parallel clamping jaws (61) are fixed to two output ends of the finger cylinder.

6. A two-way torsion spring loading device for knob assembly as claimed in claim 1 wherein, The second picking device (70) comprises a main limiting shaft (71) and an auxiliary stop (72), the lower end of the main limiting shaft (71) is recessed inwardly by a positioning groove (711) for positioning the assembly tool (20), the two sides of the positioning groove (711) are provided with linear first limiting grooves (712) for limiting the inner hooks (12) of the torsion springs (10) in different directions, and the auxiliary stop (72) is detachably arranged on one side of the main limiting shaft (71) and used for stopping the outer hooks (13) of the torsion springs (10) in the energy storage state so as to keep the torsion springs (10) in the energy storage state.

7. A two-way torsion spring loading device for lever assembly as claimed in claim 6 wherein, The second dislocation device (90) comprises a fourth driving mechanism (91) and a pair of shifting pieces (92), the two shifting pieces (92) are synchronously and slidably arranged along the extension direction of the first limiting groove (712) and at least partially protrude outside the first limiting groove (712), the output end of the fourth driving mechanism (91) is in transmission connection with the two shifting pieces (92) and is used for driving the two shifting pieces (92) to synchronously slide and telescopically move along the first limiting groove (712) so as to push the torsion springs (10) out of the main limiting shaft (71).

8. The two-way torsion spring loading device for knob assembly of claim 1, wherein, The intermediate position (40) comprises an intermediate seat (41) and a third clamping groove (42) arranged on the intermediate seat (41), the third clamping groove (42) comprises a third inner ring groove (421) matched with the main body (11) of the torsion spring (10) and two third hook grooves (422) symmetrically arranged on the two sides of the third inner ring groove (421) and matched with the outer hooks (13) of the torsion springs (10) in different directions.

9. The two-way torsion spring loading device for lever assembly as claimed in claim 8, wherein, The torsion mechanism (50) comprises a torsion shaft (51) and a fifth driving mechanism (52) for driving the torsion shaft (51) to rotate, the top of the torsion shaft (51) penetrates into the third clamping groove (42) and is provided with a second limiting groove (511) along the radial direction, and the second limiting groove (511) is used for limiting the inner hooks (12) of the torsion springs (10) in different directions so as to drive the torsion springs (10) to be torsionally energized under the driving of the fifth driving mechanism (52).

10. The two-way torsion spring loading device for knob assembly of claim 9, wherein, The first dislocation device (80) comprises a sixth driving mechanism (81) and an ejection structure (82) in transmission connection with the sixth driving mechanism (81), the third clamping groove (42) of the intermediate seat (41) is provided with an ejection hole (45) opposite to the position of the ejection structure (82), and the sixth driving mechanism (81) is used for driving the ejection structure (82) to vertically and telescopically slide between the position below the intermediate seat (41) and the position protruding from the intermediate seat (41) so as to eject the torsionally energized torsion springs (10) out of the third clamping groove (42).

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