Door closer connector assembly process and assembly apparatus

Abstract

The application discloses a door closer connecting piece assembling process, which comprises the following steps: A. loading, B. feeding, C. assembling, D. discharging, and E. finished product collecting; and a door closer connecting piece assembling device, which comprises a base, a connecting piece feeding mechanism and a connecting piece assembling mechanism arranged on the base; the connecting piece assembling device comprises a left pushing mechanism and a right pushing mechanism; the left pushing mechanism comprises a first pushing rod matched with a connecting piece assembling channel, and a first driving piece for driving the first pushing rod to move is arranged on the base; the right pushing mechanism comprises a first hole expanding guide rod matched with the connecting piece assembling channel, the head end of the first hole expanding guide rod is in a conical shape with a small outer diameter and a large inner diameter, and a second driving piece is arranged on the base; and a supporting boss for lifting the gravity center of a bushing is arranged below the outlet of the bushing guide pipe and at the connecting piece assembling channel. The application can automatically feed the jacket and the bushing and automatically assemble the bushing to the jacket, and has the advantages of high installation efficiency and low production cost, and is worth being popularized and applied.

Description

TECHNICAL FIELD

[0001] The present application relates to an assembly process and its assembly equipment, in particular to an assembly process and its assembly equipment for accessories on a door closing part, and more particularly to an assembly process and its assembly equipment for a door closer connecting part. BACKGROUND

[0002] The connecting part sleeve bushing on the door closer is an important part when the door closer shaft and connecting rod are installed (as shown in Figure 9 , Figure 10 ), which plays a role in bearing connection. When the connecting rod drives the door closer shaft to rotate, it can greatly reduce the frictional resistance. Traditionally, the installation of the bushing on the sleeve is carried out manually, that is, a special tool is used to open the clamping hole on the sleeve, then the bushing is placed in the clamping hole of the sleeve, and then the clamping hole of the sleeve is loosened. After the sleeve resets, the sleeve is clamped again by the elastic force of the sleeve itself. This way, not only is the efficiency low, the labor is large, and the production cost is high, but also the product quality control is poor, and the clamping hole of the sleeve is easily bent too large, exceeding the reset range of the sleeve clamping hole, resulting in scrap.

[0003] Chinese utility model patent CN 215046709 U discloses a feeding mechanism for bearing bush assembly, which comprises a rack and a track. The rack is provided with a trough, and the track is provided with a passage. A swing arm with transmission function is arranged between the trough and the passage. The swing arm is provided with a pushing mechanism and a positioning block for limiting the movement of the swing arm. The swing arm is sequentially and fixedly provided with a feeding clamp, a support seat and a guide pipe from top to bottom. The feeding clamp sleeve is provided with a clamping cylinder, and the clamping cylinder is sleeved with a movable push rod. A positioning column is arranged between the feeding clamp and the support seat. The swing arm is also provided with a shaft coupling for driving it to rotate. The pushing mechanism is provided with a pushing rod, which comprises an upper part, a middle part and a lower part. The upper part is connected to the push rod by bolts. The middle part is rotationally connected to the support seat by a positioning pin. The pushing rod rotates around the positioning pin as the center. The lower part is provided with a connecting rod. The guide pipe is sleeved with a connecting column for moving the connecting rod. The connecting column is connected with the connecting rod. The positioning column is sleeved with a spring, one end of which abuts against the swing arm, and the other end abuts against the pushing rod. This feeding mechanism cannot continuously and accurately feed, which may cause jamming during feeding, unstable work and adverse effects on subsequent bush assembly. SUMMARY

[0004] The present application aims to solve the above-mentioned shortcomings of the prior art and provide a door closer connecting part assembly process and its assembly equipment which can automatically feed and assemble the sleeve and bush together, meeting the needs of high installation efficiency and low production cost of the door closer connecting part sleeve and bush.

[0005] The technical solution adopted by the present application to solve the technical problems is as follows: the door closer connecting part assembly process comprises the following steps:

[0006] A. Loading: Put the two fittings of the clamp sleeve and the bushing into the clamp sleeve vibration disc and the bushing vibration disc respectively; the clamp sleeve vibration disc and the bushing vibration disc can automatically transport the clamp sleeve and the bushing one by one;

[0007] B. Feeding: The clamp sleeve vibration disc vibrates and transports the clamp sleeve to the first connecting channel one by one through the clamp sleeve guide tube; at this time, the receiving groove and the first connecting channel are in a level position, the clamp sleeve is transported to the receiving groove through the first connecting channel, then the air cylinder is started, the air cylinder drives the clamp sleeve in the receiving groove to the second insertion channel, then the rodless air cylinder is started and pushes the clamp sleeve to the connecting piece assembly channel through the second insertion rod, the length of the clamp sleeve is greater than the width of the connecting piece assembly channel; at the same time, the bushing vibration disc vibrates synchronously and is guided to the connecting piece assembly channel through the bushing guide tube;

[0008] C. Assembly: Start the servo motor and rotate the lead screw, so as to move the lead screw nut, move the first sliding seat, and make the first push rod stop at the inner side end of the bushing; at the same time, start the second air cylinder and move the second sliding seat, so as to move the first counterbore guide rod, the tapered insertion of the first counterbore guide rod is inserted into the clamp hole of the clamp sleeve and expands the clamp hole of the clamp sleeve through the outer diameter of the first counterbore guide rod, the first counterbore guide rod continues to move and presses at the outer side end of the bushing; at this time, the servo motor and the second air cylinder are started synchronously, and the first push rod moves outward and the first counterbore guide rod resets and moves inward, so that the first push rod and the first counterbore guide rod move synchronously and clamp the bushing to stop at the clamp hole of the clamp sleeve, at this time, the first counterbore guide rod continues to reset and move inward, and the servo motor reverses, so as to move the first push rod inward and reset, because the clamp hole of the clamp sleeve loses the expansion support of the outer diameter of the first counterbore guide rod, the clamp hole at the clamp sleeve rebounds and resets under the action of the material elastic force, and clamps the bushing located in the clamp hole;

[0009] D. Discharge: After the bushing is installed at the clamp sleeve, the first air cylinder is started, the insertion block is moved and the finished product discharge port is exposed, because the bushing end is heavier after the bushing is installed, it will eccentrically overturn and fall to the finished product discharge port;

[0010] E. Finished product holding: The assembled finished product falling from the finished product discharge port reaches the holding container for unified collection and processing.

[0011] The door closer connecting piece assembling device comprises a base, a connecting piece feeding device and a connecting piece assembling device are arranged on the base; the connecting piece feeding device comprises a clamping sleeve vibration disc and a bushing vibration disc which are installed on the base; a first support is fixed on the base, a first plug-in channel is arranged on the first support in the "X" direction, a first plug rod is plugged into the first plug-in channel, a receiving groove is arranged at the top end of the first plug rod, a cylinder is fixed on the base to move the first plug rod, a second plug-in channel is arranged on the first support in the "Y" direction, the first plug-in channel and the second plug-in channel are communicated, a second plug rod is plugged into the second plug-in channel, a rodless cylinder is fixed on the first support, the second plug rod is fixed on the push block of the rodless cylinder, a first connecting channel is arranged on the first support and communicated with the first plug-in channel, a clamping sleeve guide pipe is connected between the first connecting channel and the outlet end of the clamping sleeve vibration disc, a second support is fixed on the side end of the first support, a connecting piece assembling channel is arranged on the second support in the "X" direction, a second connecting channel is arranged on the second support, one end of the second connecting channel is communicated with the second plug-in channel, the other end of the second connecting channel is communicated with the connecting piece assembling channel, and a bushing guide pipe is arranged between the outlet end of the bushing vibration disc and the connecting piece assembling channel; the connecting piece assembling device comprises a left pushing mechanism and a right pushing mechanism; the left pushing mechanism comprises a first pushing rod matched with the connecting piece assembling channel, and a first driving element is installed on the base to move the first pushing rod; the right pushing mechanism comprises a first hole expanding guide rod matched with the connecting piece assembling channel, the head end of the first hole expanding guide rod is in the shape of a cone with a small outer diameter and a large inner diameter, and a second driving element is installed on the base to move the first hole expanding guide rod; a supporting boss is arranged below the outlet end of the bushing guide pipe and in the connecting piece assembling channel to lift the gravity center of the bushing. The clamping sleeve vibration disc and the clamping sleeve conveying pipe can accurately convey the clamping sleeves one by one to the first connecting channel; the bushing vibration disc and the bushing conveying pipe can accurately convey the bushings one by one to the connecting piece assembling channel; the first plug-in channel, the first plug rod, the cylinder and the receiving groove can accurately convey the clamping sleeves one by one to the second plug-in channel; the second plug-in channel, the second plug rod and the rodless cylinder can accurately push the clamping sleeves into the connecting piece assembling channel for installation; the connecting piece assembling device can assemble the bushing into the clamping hole of the clamping sleeve; and the supporting boss can lift the center of the bushing to facilitate the installation of the bushing into the clamping hole of the clamping sleeve.

[0012] Further improvement, a longitudinal limiting plate matched with the position of the second connecting channel is fixed on the second support. The longitudinal limiting plate can prevent the clamping sleeve from jumping up and out when pushed into the connecting piece assembling channel by the second plug rod.

[0013] Further improvement, the connecting piece assembly channel is provided with a plug-in gap, the plug-in gap is located at the side end of the second connecting channel, a plug block is plugged into the plug-in gap, the top end of the plug block is flush with the bottom surface of the second connecting channel, the plug block is driven by a first cylinder installed at the base, a finished product discharge port is opened at the plug-in gap, the finished product discharge port penetrates the base, and a containing container is placed below the finished product discharge port. The role of the plug-in gap, the plug block, the first cylinder and the finished product discharge port is that the connecting piece product can be dropped into the finished product discharge port through the opening of the plug block and dropped into the containing container, thereby facilitating collection and processing.

[0014] Further improvement, the first driving member includes a first mounting frame, a lead screw is rotatably connected to the first mounting frame, a first sliding seat is slidably connected to the first mounting frame, a lead screw nut threadedly connected with the lead screw is fixed to the side end of the first sliding seat, a servo motor for driving the lead screw to rotate is fixed to the first mounting frame, and the first push rod is fixed to the sliding seat; the second driving member includes a second sliding seat slidably connected to the base, the first counterbore guide rod is fixed to the second sliding seat, and a second cylinder for driving the second sliding seat to move is fixed to the base. A bracket is installed on the base, a PLC controller is installed on the bracket, a control screen is installed on the bracket, and the PLC controller is connected in circuit with the control screen, the cylinder, the first cylinder, the second cylinder, the rodless cylinder and the servo motor. The first sliding seat, the lead screw nut and the servo motor can more stably and accurately drive the first push rod to move; the second sliding seat and the second cylinder can more accurately drive the first counterbore guide rod to move; the PLC controller in the present scheme is a general programmable logic controller on the market, and brands such as Mitsubishi PLC, Schneider PLC, Unitronics, Delta PLC and Panasonic PLC can be selected; in addition, the program setting of the PLC controller is basically the same as the setting method principle on the market, and ordinary technical personnel can set the program instructions according to the processing speed and efficiency requirements, which is fast and convenient.

[0015] Further improvement, the head end of the second insertion rod is fixed with an extension boss, and the bottom surface of the extension boss is inclined from large outside to small inside. The role of the extension boss is to avoid rotation of the jacket when the jacket is pushed by the second insertion rod, thereby facilitating accurate pushing of the jacket to the connecting piece assembly channel. The bottom surface of the extension boss is inclined from large outside to small inside, which is conducive to pushing the jacket, so that part of the jacket is located below the extension boss, and the jacket is more stably and accurately pushed to the connecting piece assembly channel.

[0016] Further improvement, the side of the second connecting channel is provided with a first plug rod matching groove. Here, the role of the first plug rod matching groove is that when the first plug rod is pushed into the second connecting channel, the end of the first plug rod can be matched in the first plug rod matching groove, so that the material receiving groove can be exactly flat with the second connecting channel, which is beneficial for the clamp sleeve to be pushed into the connecting piece assembly channel.

[0017] Further improvement, the base is provided with a cover shell covering the first driving member. Here, the role of the cover shell is to cover the first driving member, thereby playing a dustproof role.

[0018] Further improvement, the surfaces of the first plug-in channel, the second plug-in channel, the first connecting channel, the second connecting channel and the connecting piece assembly channel are provided with a self-lubricating layer. Here, the self-lubricating layer is made of tin bronze material, which can reduce friction resistance and pushing resistance, so that the first plug rod, the second plug rod, the first pushing rod and the first hole expanding guide rod can move more smoothly and will not be jammed, and the push sleeve and the bushing can move more smoothly.

[0019] The beneficial effects of the present application are:

[0020] 1) The clamp sleeve and the bushing can be automatically pushed to the installation position;

[0021] 2) The clamp sleeve and the bushing have high feeding efficiency and will not be jammed, and the bushing can be quickly and automatically installed in the clamp hole of the clamp sleeve, greatly improving the assembly efficiency;

[0022] 3) The cost of door closer connecting piece assembly is reduced, the production efficiency is improved, and the enterprise profit is improved;

[0023] 4) The assembly product has high discharging efficiency and will not be extruded, and the product can automatically fall into the containing container for easy collection and processing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the perspective of the present application Figure 1 ;

[0025] Figure 2 is the perspective of the present application Figure 2 ;

[0026] Figure 3 is the A-A sectional view of Figure 2 ;

[0027] Figure 4 is the B-B sectional view of Figure 2 ;

[0028] Figure 5 is the C-C sectional view of Figure 2 ;

[0029] Figure 6 The cross-sectional view of the holding container area in the application;

[0030] Figure 7 The working principle flow chart when the jacket is pushed into the connecting piece assembly channel in the application;

[0031] Figure 8 The working principle flow chart when the bushing is installed to the jacket in the application;

[0032] Figure 9 The perspective view when the door closer connecting piece bushing is installed to the jacket;

[0033] Figure 10 The schematic diagram of the application scene of the door closer connecting piece.

[0034] Explanation of reference signs: base 1, connecting piece feeding device 2, jacket vibration disc 2-1, bushing vibration disc 2-2, first support 2-3, first plug-in channel 2-3a, second plug-in channel 2-3b, first plug rod 2-4, air cylinder 2-5, second plug rod 2-6, extension boss 2-6a, rodless air cylinder 2-7, jacket guide pipe 2-8, second support 2-9, connecting piece assembly channel 2-9a, support boss 2a-9a, second connecting channel 2-9b, first plug-in matching groove 2a-9b, bushing guide pipe 2-10, longitudinal limiting plate 2-11, plug block 2-12, self-lubricating layer 2-13, connecting piece assembly device 3, left pushing mechanism 3-1, first pushing rod 3-1a, first driving part 3-1b, first mounting rack 3a-1b, lead screw 3b-1b, first sliding block 3c-1b, lead screw nut 3d-1b, servo motor 3e-1b, right pushing mechanism 3-2, first counterbore guide rod 3-2a, second driving part 3-2b, second sliding seat 3a-2b, second air cylinder 3b-2b, cover 3-3, finished product discharge port 4, holding container 5, support 6, PLC controller 7, control screen 8, jacket 9, clamping hole 9-1, bushing 10, first air cylinder 11, door 12. DETAILED DESCRIPTION

[0035] The application will be further described below in combination with the drawings:

[0036] Referring to the drawings: this door closer connecting piece assembly process includes the following steps:

[0037] A. Loading: pour the two fittings of the jacket 9 and the bushing 10 into the jacket vibration disc 2-1 and the bushing vibration disc 2-2 respectively;

[0038] B. Feeding: The jacket 9 is transported to the first connecting channel 2-3c one by one by the jacket vibration plate 2-1 vibration and through the jacket guide tube 2-8, at this time, the receiving groove 2-4a is in the level position with the first connecting channel 2-3c, the jacket 9 is transported to the receiving groove 2-4a through the first connecting channel 2-3c, then the air cylinder 2-5 is started, the air cylinder 2-5 drives the jacket 9 in the receiving groove 2-4a to reach the second insertion channel 2-3b, then the rodless air cylinder 2-7 is started and the jacket 9 is pushed to the connecting piece assembly channel 2-9a through the second insertion rod 2-6, the length of the jacket 9 is greater than the width of the connecting piece assembly channel 2-9a; At the same time, the bushing vibration plate 2-2 vibrates synchronously and is guided to the connecting piece assembly channel 2-9a through the bushing guide tube 2-10;

[0039] C. Assembly: the servo motor 3e-1b is started and rotates the lead screw 3b-1b, thereby moving the lead screw nut 3d-1b, thereby moving the first sliding block 3c-1b, and thereby the first push rod 3-1a is on the inside end of the bushing 10; At the same time, the second air cylinder 3b-2b is started and moves the second sliding block 3a-2b, thereby moving the first counterbore guide rod 3-2a, the taper 3a-2a on the first counterbore guide rod 3-2a is inserted into the clamping hole 9-1 of the jacket 9 and expands the clamping hole 9-1 of the jacket 9 through the outer diameter of the first counterbore guide rod 3-2a, and the first counterbore guide rod 3-2a continues to move and presses on the outside end of the bushing 10; At this time, the servo motor 3e-1b and the second air cylinder 3b-2b are started synchronously, and the first push rod 3-1a moves out and the first counterbore guide rod 3-2a moves in, thereby the first push rod 3-1a and the first counterbore guide rod 3-2a move synchronously and clamp the bushing 10 to stop at the clamping hole 9-1 of the jacket 9, at this time, the first counterbore guide rod 3-2a continues to move in, and the servo motor 3e-1b reverses, thereby moving the first push rod 3-1a in, and because the clamping hole 9-1 of the jacket 9 loses the expansion support of the outer diameter of the first counterbore guide rod 3-2a, the clamping hole 9-1 at the jacket 9 rebounds and resets under the action of material elasticity and clamps the bushing 10 at the clamping hole 9-1;

[0040] D. Discharge: after the bushing 10 is installed at the jacket 9, the first air cylinder 11 is started, the first air cylinder 11 moves the insertion block 2-12 and exposes the finished product discharge port 4, because the bushing 10 is heavier after the jacket 9 is installed, the bushing 10 will eccentrically flip and fall to the finished product discharge port 4;

[0041] E. Finished product holding: the assembled finished product that falls from the finished product discharge port 4 reaches the holding container 5 for unified collection and processing.

[0042] The door closer connecting piece assembling equipment comprises a base 1, a connecting piece feeding device 2 and a connecting piece assembling device 3 are arranged on the base 1; the connecting piece feeding device 2 comprises a clamping sleeve vibration disc 2-1 and a bushing vibration disc 2-2 which are arranged on the base 1; a first support 2-3 is fixed on the base 1, a first plug-in channel 2-3a is arranged on the first support 2-3 in the "X" direction, a first plug rod 2-4 is plugged into the first plug-in channel 2-3a, a material receiving groove 2-4a is arranged at the top end of the first plug rod 2-4, a pneumatic cylinder 2-5 is fixed on the base 1 and drives the first plug rod 2-4 to move, a second plug-in channel 2-3b is arranged on the first support 2-3 in the "Y" direction, the first plug-in channel 2-3a and the second plug-in channel 2-3b are communicated, a second plug rod 2-6 is plugged into the second plug-in channel 2-3b, a rodless pneumatic cylinder 2-7 is fixed on the first support 2-3, the second plug rod 2-6 is fixed on the push block of the rodless pneumatic cylinder 2-7, a first connecting channel 2-3c is arranged on the first support 2-3 and communicated with the first plug-in channel 2-3a, a clamping sleeve guide pipe 2-8 is connected between the first connecting channel 2-3c and the outlet end of the clamping sleeve vibration disc 2-1, a second support 2-9 is arranged on the side end of the first support 2-3 and fixed on the base 1, a connecting piece assembling channel 2-9a is arranged on the second support 2-9 in the "X" direction, a second connecting channel 2-9b is arranged on the second support 2-9, one end of the second connecting channel 2-9b is communicated with the second plug-in channel 2-3b, the other end of the second connecting channel 2-9b is communicated with the connecting piece assembling channel 2-9a, and a bushing guide pipe 2-10 is arranged between the outlet end of the bushing vibration disc 2-2 and the connecting piece assembling channel 2-9a; the connecting piece assembling device 3 comprises a left pushing mechanism 3-1 and a right pushing mechanism 3-2; the left pushing mechanism 3-1 comprises a first pushing rod 3-1a which is matched with the connecting piece assembling channel 2-9a, and a first driving member 3-1b which is arranged on the base 1 and drives the first pushing rod 3-1a to move; the right pushing mechanism 3-2 comprises a first hole expanding guide rod 3-2a which is matched with the connecting piece assembling channel 2-9a, the head end of the first hole expanding guide rod 3-2a is in the shape of a cone with a small outer diameter and a large inner diameter, and a second driving member 3-2b which is arranged on the base 1 and drives the first hole expanding guide rod 3-2a to move; a support boss 2a-9a is arranged below the outlet end of the bushing guide pipe 2-10 and in the connecting piece assembling channel 2-9a to raise the gravity center of the bushing.

[0043] A longitudinal limiting plate 2-11 is fixed on the second support 2-9 and matched with the position of the second connecting channel 2-9b.

[0044] The connecting piece assembly channel 2-9a is provided with a plug-in gap 2b-9a at the side end of the second connecting channel 2-9b, a plug 2-12 is plugged into the plug-in gap 2b-9a, the top end of the plug 2-12 is flush with the bottom surface of the second connecting channel 2-9b, the plug 2-12 is driven by the first air cylinder 11 installed at the base 1, and a finished product discharge port 4 is opened at the plug-in gap 2b-9a, the finished product discharge port 4 penetrates the base 1, and a containing container 5 is placed below the finished product discharge port 4.

[0045] The first driving member 3-1b includes a first mounting frame 3a-1b, a lead screw 3b-1b rotatably connected to the first mounting frame 3a-1b, and a first sliding seat 3c-1b slidably connected to the first mounting frame 3a-1b. The side end of the first sliding seat 3c-1b is fixed with a lead screw nut 3d-1b threadedly connected with the lead screw 3b-1b. A servo motor 3e-1b for driving the lead screw 3b-1b to rotate is fixed to the first mounting frame 3a-1b. The first push rod 3-1a is fixed to the sliding seat 3c-1b. The second driving member 3-2b includes a second sliding seat 3a-2b slidably connected to the base 1, and a first counterbore guide rod 3-2a fixed to the second sliding seat 3a-2b. A second air cylinder 3b-2b for driving the second sliding seat 3a-2b to move is fixed to the base 1. The base 1 is provided with a support 6, a PLC controller 7 is installed on the support 6, and a control screen 8 is installed on the support 6. The PLC controller 7 is connected in circuit with the control screen 8, the air cylinder 2-5, the first air cylinder 11, the second air cylinder 3b-2b, the rodless air cylinder 2-7, and the servo motor 3e-1b.

[0046] The head end of the second plug rod 2-6 is fixed with an extension boss 2-6a, and the bottom surface of the extension boss 2-6a is inclined from large outside to small inside.

[0047] The side surface of the second connecting channel 2-9b is provided with a first plug rod matching groove 2a-9b.

[0048] The base 1 is provided with a cover 3-3 covering the first driving member 3-1b.

[0049] The surfaces of the first plug-in channel 2-3a, the second plug-in channel 2-3b, the first connecting channel 2-3c, the second connecting channel 2-9b, and the connecting piece assembly channel 2-9a are provided with a self-lubricating layer 2-13.

[0050] The working principle of the present application: the fittings of the two door closer connecting parts of the sleeve 9 and the bushing 10 are respectively poured into the sleeve vibration disc 2-1 and the bushing vibration disc 2-2, the PLC controller 7 controls the vibration of the sleeve vibration disc 2-1 and transports the sleeve 9 to the first connecting channel 2-3c through the sleeve guide pipe 2-8 one by one, at this time, the receiving groove 2-4a and the first connecting channel 2-3c are in the same level position, the sleeve 9 is transported to the receiving groove 2-4a through the first connecting channel 2-3c, then the PLC controller 7 controls the start of the air cylinder 2-5, the air cylinder 2-5 drives the sleeve 9 in the receiving groove 2-4a to reach the second insertion channel 2-3b, then the air cylinder 2-7 is started and the sleeve 9 is pushed to the connecting part assembly channel 2-9a through the second insertion rod 2-6 (the length of the sleeve 9 is greater than the width of the connecting part assembly channel 2-9a, the sleeve 9 is located at the connecting part assembly channel 2-9a, and the long handle part of the sleeve 9 is mostly left in the second connecting channel 2-9b, so that the problem of the sleeve 9 being pushed away when the first hole expansion guide rod 3-2a expands the sleeve 9-1 does not occur, as shown in Figure 7 At the same time, the PLC controller 7 controls the synchronous vibration of the bushing vibration disc 2-2 and guides it to the connecting part assembly channel 2-9a through the bushing guide pipe 2-10, the PLC controller 7 controls the start of the servo motor 3e-1b and drives the lead screw 3b-1b to rotate, so as to drive the lead screw nut 3d-1b to move, so as to drive the first sliding seat 3c-1b to move, and the first pushing rod 3-1a is located at the inner side end of the bushing 10; At the same time, the PLC controller 7 controls the start of the second air cylinder 3b-2b and drives the second sliding seat 3a-2b to move, so as to drive the first hole expansion guide rod 3-2a to move, the taper 3a-2a on the first hole expansion guide rod 3-2a is inserted into the sleeve 9-1 and expands the sleeve 9-1 through the outer diameter of the first hole expansion guide rod 3-2a (the sleeve 9 has elastic force, and the first hole expansion guide rod 3-2a is reset after expansion), the first hole expansion guide rod 3-2a continues to move and presses at the outer side end of the sleeve 10, at this time, the PLC controller 7 controls the synchronous start of the servo motor 3e-1b and the second air cylinder 3b-2b, and drives the first pushing rod 3-1a to move outward and the first hole expansion guide rod 3-2a to reset and move inward, so that the first pushing rod 3-1a and the first hole expansion guide rod 3-2a move synchronously and clamp the sleeve 10 to stop at the sleeve 9-1, at this time, the first hole expansion guide rod 3-2a continues to reset and move inward, and the servo motor 3e-1b reverses to rotate, so as to drive the first pushing rod 3-1a to move inward and reset, because the sleeve 9-1 loses the expansion support of the outer diameter of the first hole expansion guide rod 3-2a, the sleeve 9-1 at the sleeve 9-1 is rebounded and reset by the elastic force of the material and clamps the sleeve 10 at the sleeve 9-1 (as Figure 8 、 Figure 9After the sleeve 10 is installed to the jacket 9, then the first cylinder 11 is started, the first cylinder 11 drives the plug 2-12 to move and expose the finished product discharge port 4, since the sleeve 10 is heavier at the end after the jacket 9 is installed, the sleeve 10 will eccentrically overturn and fall to the finished product discharge port 4, thereby falling to the containing container 5 for unified collection and treatment; the application can automatically feed the jacket and the sleeve and can automatically assemble the sleeve to the jacket, the installation efficiency is high, the production cost is low, and it is worth popularization and application.

[0051] While the application has been illustrated and described with reference to the preferred embodiments, it is to be understood that various changes in form and detail can be made therein without departing from the spirit and scope of the application as set forth in the following claims.

Claims

1. A door closer connector assembly process, characterized by the following steps: A. Loading: the two fittings of the sleeve (9) and the bushing (10) are respectively poured into the sleeve vibration disc (2-1) and the bushing vibration disc (2-2); B. Feeding: the sleeve vibration disc (2-1) vibrates and transports the sleeve (9) to the first connection channel (2-3c) one by one through the sleeve guide pipe (2-8), at this time, the receiving groove (2-4a) and the first connection channel (2-3c) are in a level position, the sleeve (9) is transported to the receiving groove (2-4a) through the first connection channel (2-3c), then the air cylinder (2-5) is started, the air cylinder (2-5) drives the sleeve (9) in the receiving groove (2-4a) to reach the second insertion channel (2-3b), then the rodless air cylinder (2-7) is started and pushes the sleeve (9) to reach the connector assembly channel (2-9a) through the second insertion rod (2-6), the length of the sleeve (9) is greater than the width of the connector assembly channel (2-9a); At the same time, the bushing vibration disc (2-2) vibrates synchronously and is guided to the connector assembly channel (2-9a) through the bushing guide pipe (2-10); C. Assembly: start the servo motor (3e-1b) and rotate the lead screw (3b-1b), so as to drive the lead screw nut (3d-1b) to move, so as to drive the first sliding seat (3c-1b) to move, and the first push rod (3-1a) is pushed against the inner side end of the bushing (10); At the same time, start the second air cylinder (3b-2b) and drive the second sliding seat (3a-2b) to move, so as to drive the first counterbore guide rod (3-2a) to move, the taper (3a-2a) on the first counterbore guide rod (3-2a) is inserted into the clamping hole (9-1) of the sleeve (9) and expands the clamping hole (9-1) of the sleeve (9) through the outer diameter of the first counterbore guide rod (3-2a), the first counterbore guide rod (3-2a) continues to move and presses against the outer side end of the bushing (10); At this time, the servo motor (3e-1b) and the second air cylinder (3b-2b) are started synchronously, and the first push rod (3-1a) moves out and the first counterbore guide rod (3-2a) resets and moves in synchronously, so that the first push rod (3-1a) and the first counterbore guide rod (3-2a) move synchronously and clamp the bushing (10) to stop at the clamping hole (9-1) of the sleeve (9), at this time, the first counterbore guide rod (3-2a) continues to reset and move in, and the servo motor (3e-1b) reverses to rotate, so as to drive the first push rod (3-1a) to move in and reset, because the clamping hole (9-1) of the sleeve (9) loses the expansion support of the outer diameter of the first counterbore guide rod (3-2a), the clamping hole (9-1) at the sleeve (9) rebounds and resets under the action of material elasticity and clamps the bushing (10) located in the clamping hole (9-1); D. discharging: after the bushing (10) is installed to the jacket (9), then, the first cylinder (11) is started, the first cylinder (11) drives the plug (2-12) to move and expose the finished product discharge port (4), because the bushing (10) is heavier at the end after the jacket (9) is installed to the bushing (10), the bushing (10) will eccentrically overturn and fall to the finished product discharge port (4); E. finished product storage: the assembled finished product falling from the finished product discharge port (4) reaches the storage container (5) to be uniformly collected and treated.

2. The door closer connector assembly process of claim 1, wherein: The base (1) is provided with a connecting piece feeding device (2) and a connecting piece assembling device (3); The connecting piece feeding device (2) comprises a jacket vibration disc (2-1) and a bushing vibration disc (2-2) installed on the base (1); a first support (2-3) is fixed on the base (1), a first plug channel (2-3a) is arranged in the "X" direction on the first support (2-3), a first plug rod (2-4) is plugged into the first plug channel (2-3a), a receiving groove (2-4a) is arranged at the top end of the first plug rod (2-4), a cylinder (2-5) is fixed on the base (1) to drive the first plug rod (2-4) to move, a second plug channel (2-3b) is arranged in the "Y" direction on the first support (2-3), the first plug channel (2-3a) and the second plug channel (2-3b) are communicated, a second plug rod (2-6) is plugged into the second plug channel (2-3b), a rodless cylinder (2-7) is fixed on the first support (2-3), the second plug rod (2-6) is fixed on the push block of the rodless cylinder (2-7), a first connecting channel (2-3c) is arranged on the first support (2-3) and communicated with the first plug channel (2-3a), a jacket guide pipe (2-8) is connected between the first connecting channel (2-3c) and the outlet end of the jacket vibration disc (2-1), a second support (2-9) is fixed on the base (1) at the side end of the first support (2-3), a connecting piece assembling channel (2-9a) is arranged in the "X" direction on the second support (2-9), a second connecting channel (2-9b) is arranged on the second support (2-9), one end of the second connecting channel (2-9b) is connected with the second plug channel (2-3b), the other end of the second connecting channel (2-9b) is communicated with the connecting piece assembling channel (2-9a), and a bushing guide pipe (2-10) is arranged between the outlet end of the bushing vibration disc (2-2) and the connecting piece assembling channel (2-9a). The connecting piece assembling device (3) comprises a left pushing mechanism (3-1) and a right pushing mechanism (3-2); the left pushing mechanism (3-1) comprises a first pushing rod (3-1a) matched at the connecting piece assembling channel (2-9a), and a first driving element (3-1b) for driving the first pushing rod (3-1a) to move is mounted on the base (1); the right pushing mechanism (3-2) comprises a first hole expanding guide rod (3-2a) matched at the connecting piece assembling channel (2-9a), and the head end of the first hole expanding guide rod (3-2a) is in a shape of a small outer end and a large inner end (3a-2a), and a second driving element (3-2b) for driving the first hole expanding guide rod (3-2a) to move is mounted on the base (1). A support boss (2a-9a) for lifting the gravity center of the bushing is arranged below the outlet of the bushing guide pipe (2-10) and at the connecting piece assembling channel (2-9a).

3. The door closer connector assembly process of claim 2, wherein: A longitudinal limiting plate (2-11) matched with the position of the second connecting channel (2-9b) is fixed on the second support (2-9).

4. A door closer connection assembly process according to claim 2 or 3, characterised in that: An insertion gap (2b-9a) is arranged at the connecting piece assembling channel (2-9a), the insertion gap (2b-9a) is located at the side end of the second connecting channel (2-9b), an insertion block (2-12) is inserted into the insertion gap (2b-9a), the top end of the insertion block (2-12) is flush with the bottom surface of the second connecting channel (2-9b), the insertion block (2-12) is driven by a first air cylinder (11) mounted on the base (1), a finished product discharge port (4) is arranged at the insertion gap (2b-9a), the finished product discharge port (4) penetrates through the base (1), and a containing container (5) is placed below the finished product discharge port (4).

5. The door closer connector assembly process of claim 4, wherein: The first driving element (3-1b) comprises a first mounting frame (3a-1b), a lead screw (3b-1b) is rotatably connected to the first mounting frame (3a-1b), a first sliding seat (3c-1b) is slidably connected to the first mounting frame (3a-1b), a lead screw nut (3d-1b) is fixed to the side end of the first sliding seat (3c-1b) and is threadedly connected with the lead screw (3b-1b), a servo motor (3e-1b) for driving the lead screw (3b-1b) to rotate is fixed to the first mounting frame (3a-1b), and the first pushing rod (3-1a) is fixed to the sliding seat (3c-1b); the second driving element (3-2b) comprises a second sliding seat (3a-2b) slidably connected to the base (1), the first hole expanding guide rod (3-2a) is fixed to the second sliding seat (3a-2b), and a second air cylinder (3b-2b) for driving the second sliding seat (3a-2b) to move is fixed to the base (1).

6. The door closer connector assembly process of claim 2, wherein: The head end of the second insertion rod (2-6) is fixed with an extension boss (2-6a), and the bottom surface of the extension boss (2-6a) is in an inclined shape of large outside and small inside.

7. The door closer connector assembly process of claim 2, wherein: A first insertion rod matching groove (2a-9b) is arranged on the side surface of the second connecting channel (2-9b).

8. The door closer connector assembly process of claim 2, wherein: A cover (3-3) covering the first driving element (3-1b) is mounted on the base (1).

9. The door closer connector assembly process of claim 2, wherein: The surfaces of the first plug-in channel (2-3a), the second plug-in channel (2-3b), the first connecting channel (2-3c), the second connecting channel (2-9b) and the connecting piece assembly channel (2-9a) are provided with a self-lubricating layer (2-13).

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