Pin press-fitting equipment

Abstract

The utility model discloses pin press-fitting equipment which comprises a machine frame, a workbench is arranged on the machine frame, and a feeding device, a workpiece positioning mechanism used for fixing a workpiece and a rivet pressing device arranged above the feeding device and the workpiece positioning mechanism are arranged on the workbench. The feeding device comprises a vibration disc and a pin positioning mechanism which is used for taking pins from the vibration disc and performing fine positioning; the workpiece positioning mechanism is arranged on one side of the pin positioning mechanism; the rivet pressing device comprises a grabbing unit for grabbing the pins from the pin positioning mechanism. The pin positioning mechanism is arranged in the feeding device so as to improve the pin taking efficiency of the grabbing unit, the workpiece positioning mechanism is arranged so that the to-be-press-fitted workpiece can be placed more accurately, the product press-fitting quality is improved, and the press-fitting completion procedure of the whole equipment is automatic.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure riveting, in particular to a press-fitting pin device. Background Art

[0002] In the field of riveting technology, pins are usually used to connect two components to be crimped together, and the press-fitting of the pins is an important process.

[0003] In the prior art, the riveting machine needs to be operated manually. First, the pin is placed under the riveting head, and then the workpiece to be riveted is placed under the riveting head. The riveting machine is started to complete the riveting operation, and the above operation is repeated until the riveting work is completed. The above operation has the following two disadvantages: 1. The manual placement of the pin has low operating efficiency; 2. The manual placement of the workpiece to be riveted has inaccurate placement position, which is easy to produce defective products.

[0004] In the prior art, there are also automated devices for removing pins from riveting machines, but the pins are not precisely positioned in advance, which makes the pin removal program design complicated, the cycle time long, and the pin removal error rate high. In order to improve production efficiency, increase the degree of automation, save costs, and at the same time to improve the quality of riveting, there is an urgent need for an automatic pin pressing device that can realize the precise loading and automatic pressing of pins. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a press-fitting pin equipment, which can realize accurate feeding and automatic press-fitting of pins, and positioning and placing of workpieces to be processed, so that the processing quality of the workpieces is higher.

[0006] The technical solution of the utility model is: a press-fit pin device, comprising a frame, a workbench is arranged on the frame, a feeding device, a workpiece positioning mechanism for fixing the workpiece, and a riveting device arranged above the feeding device and the workpiece positioning mechanism; the feeding device comprises a vibrating plate and a pin positioning mechanism;

[0007] The pin positioning mechanism is arranged between the vibration plate and the workpiece positioning mechanism, and comprises a feed stopper with a material storage hole and a positioning material receiving plate with a positioning hole, wherein the material storage hole is connected to the material discharge port of the vibration plate, and the feed stopper is arranged at the upper end of the positioning material receiving plate, and the feed stopper makes the material storage hole and the positioning hole relative to each other under the driving of the feed driving member;

[0008] The riveting device comprises a grabbing unit for grabbing the pin from the positioning hole.

[0009] Its further technical solution is:

[0010] The pin positioning mechanism comprises a bottom plate with a feed guide rail and a transfer plate that can slide along the feed guide rail, the feed stopper is arranged on the transfer plate, and the transfer plate is fixedly arranged on the driving output end of the feed drive member. .

[0011] Its further technical solution is:

[0012] A positioning cylinder is provided on one side of the positioning hole, and a slot is provided on the feed stopper along the positioning hole extending toward the positioning cylinder. A pin positioning block with a pin-shaped slot at the end is slidably connected in the slot, and the pin positioning block is fixedly arranged at the output end of the positioning cylinder.

[0013] Its further technical solution is:

[0014] The transfer plate is also provided with a clamping cylinder with the same stroke direction as the transfer cylinder, and the feed stopper is provided with a clamping hole extending along the material storage hole toward the clamping cylinder. A clamping rod is passed through the clamping hole and fixedly connected to the output end of the clamping cylinder.

[0015] Its further technical solution is:

[0016] The workpiece positioning mechanism comprises a bearing platform and positioning columns arranged on the bearing platform along the four corners of the workpiece.

[0017] Its further technical solution is:

[0018] The workpiece positioning mechanism further includes positioning pins arranged along the circumference of the workpiece, and the positioning pins correspond to positioning pin holes on the workpiece.

[0019] Its further technical solution is:

[0020] The workpiece positioning mechanism also includes a rotary downward pressing cylinder arranged around the workpiece, the output end of the rotary downward pressing cylinder is connected to a downward pressing block through a rotary arm, and the downward pressing block is located above the workpiece.

[0021] Its further technical solution is:

[0022] The grabbing unit comprises a nail taking rod and a clamping cylinder for driving the nail taking rod to extend and retract.

[0023] Its further technical solution is:

[0024] The three-dimensional moving module includes an X-axis module arranged in the same direction as the stroke of the feed drive member, a Y-axis module perpendicular to the stroke of the feed drive member, and a Z-axis module arranged along the vertical direction; the X-axis module is slidably connected to the Y-axis module, the Z-axis module is slidably connected to the X-axis module, and the grabbing unit is connected to the output end of the Z-axis module and moves along the vertical direction.

[0025] Its further technical solution is:

[0026] The Z-axis module is driven by a servo electric cylinder.

[0027] The beneficial technical effect of the utility model is as follows: a pin positioning mechanism is provided in the feeding device to improve the nail picking efficiency of the grasping unit, and a workpiece positioning mechanism is provided to make the placement of the workpiece to be pressed more accurate, thereby improving the pressing quality of the product. The pressing process of the entire equipment is automated, including the automatic feeding and pressing of precise pins, and the pressing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is an overall schematic diagram of the feeding device of the utility model;

[0030] Figure 3 This is a schematic diagram of the pin positioning mechanism of the utility model;

[0031] Figure 4 This is a schematic diagram of the positioning cylinder of the utility model;

[0032] Figure 5 It is a schematic diagram of the compacting cylinder of the utility model;

[0033] Figure 6 This is a schematic diagram of the workpiece positioning mechanism of the utility model;

[0034] Figure 7 This is a schematic diagram of the pressure riveting device of the utility model;

[0035] in:

[0036] 1. Feeding device; 11. Vibrating plate; 12. Pin positioning mechanism; 121. Bottom plate; 122. Transfer plate; 123. Transfer cylinder; 124. Material holding hole; 125. Feed stopper; 126. Positioning hole; 127. Positioning receiving plate; 128. Positioning cylinder; 129. Slot; 130. Pin positioning block; 131. Pressing cylinder; 132. Pressing hole; 133. Pressing rod;

[0037] 2. Workpiece positioning mechanism; 21. Carrying platform; 22. Positioning column; 23. Positioning pin; 24. Rotating downward pressure cylinder; 25. Rotating arm; 26. Downward pressure block;

[0038] 3. Riveting device; 31. Grabbing unit; 32. Three-dimensional moving module; 321. X-axis module; 322. Y-axis module; 323. Z-axis module. DETAILED DESCRIPTION

[0039] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0040] like Figure 1 to Figure 2 As shown, the utility model is a press-fit pin equipment, including a frame, a workbench is provided on the frame, a feeding device 1, a workpiece positioning mechanism 2 for fixing the workpiece, and a riveting device 3 arranged above the feeding device 1 and the workpiece positioning mechanism 2, the feeding device 1 includes a vibration plate 11 and a pin positioning mechanism 12; the vibration plate 11 and the pin positioning mechanism 12 are connected by a feeding pipe.

[0041] like Figure 3 As shown, the pin positioning mechanism 12 includes a base plate 121 with a feed guide rail and a transfer plate 122 that can slide along the feed guide rail. The transfer plate 122 is arranged at a driving output end of a feed drive component and is slidably connected to the base plate 121 along with the stroke of the feed drive component. The feed drive component is a transfer cylinder 123. A feed stopper 125 with a material receiving hole 124 is provided on the transfer plate 122. The feed stopper 125 moves with the transfer plate 122. One end of the feed pipe is connected to the discharge port of the vibration plate 11; the other end of the feed pipe is connected to the material receiving hole 124.

[0042] In this embodiment, the workstations caused by the movement of the feed stopper 125 are divided into a nail removal workstation and a precise positioning workstation. Figure 4 As shown, a positioning receiving plate 127 with a positioning hole 126 is provided at the precision positioning station, a positioning cylinder 128 is provided on one side of the positioning hole 126, a slot 129 is provided in the positioning hole 126 extending toward the positioning cylinder 128, a pin positioning block 130 with a pin-shaped groove at the end is slidably connected in the slot 129, and the pin positioning block 130 is fixedly arranged at the output end of the positioning cylinder 128.

[0043] After the feed stopper 125 is located at the nail removal station and the nail removal is completed, it is moved to the fine positioning station under the drive of the transfer cylinder 123, and the pin falls into the positioning hole 126. The pneumatic stroke of the positioning cylinder 128 drives the pin positioning block 130 to slide in the slot 129 and further clamp the pin. After the pin is clamped, the transfer cylinder 123 is actuated and drives the transfer plate 122 and the feed stopper 125 to reset.

[0044] Furthermore, in the process of moving from the nail removal station to the precision positioning station after the feed stopper 125 removes the nail, in order to ensure that the pin in the material receiving hole 124 remains stable, a pressing cylinder 131 with the same stroke direction as the transfer cylinder 123 is further provided on the transfer plate 122. Figure 5As shown, the feed stopper 125 is provided with a clamping hole 132 extending along the material receiving hole 124 toward the clamping cylinder 131 , and a clamping rod 133 is passed through the clamping hole 132 and fixedly connected to the output end of the clamping cylinder 131 .

[0045] like Figure 6 The workpiece positioning mechanism 2 is arranged on one side of the pin positioning mechanism 12, and includes a carrier 21 and positioning columns 22 arranged on the carrier 21 along the four corners of the workpiece; under the guidance and positioning of the positioning columns 22, the workpiece can be quickly placed; further, a positioning pin 23 is also provided along the circumference of the workpiece, and the positioning pin 23 cooperates with the positioning pin hole on the product to position the workpiece when the pin is riveted.

[0046] Furthermore, a rotary pressing cylinder 24 is provided around the workpiece, and the output end of the rotary pressing cylinder 24 is connected to a pressing block 26 through a rotary arm 25. When working, the pressing block 26 is located above the workpiece, and the rotary pressing cylinder 24 drives the pressing block 26 to press down the upper end surface of the workpiece to prevent the workpiece from shaking during the riveting process. After the riveting is completed, the rotary pressing cylinder 24 drives the rotary arm 25 and the pressing block 26 to avoid the workpiece from entering and exiting.

[0047] like Figure 7 The riveting device 3 includes a gripping unit 31 capable of moving in a direction perpendicular to the carrier 21 and a three-dimensional moving module 32 providing the gripping unit 31 with spatial movement capability. The three-dimensional moving module 32 is arranged on a gantry 33, including an X-axis module 321 arranged in the same direction as the stroke of the transfer cylinder 123, a Y-axis module 322 perpendicular to the stroke of the transfer cylinder, and a Z-axis module 323 arranged in the vertical direction; the Y-axis module 322 includes a slide rail extending in the same direction, and the X-axis module 32 1 is slidably connected to the Y-axis module 322 through a slide rail. Similarly, the Z-axis module 323 is slidably connected to the X-axis module 321 through a slide rail extending in the same direction. The grabbing unit 31 is connected to the output end of the Z-axis module 323 and moves in the vertical direction. The grabbing unit 31 is driven by the joint action of the X-axis module 321, the Y-axis module 322 and the Z-axis module 323 to realize the free movement of each point in space, so as to conveniently grab the pin and place the pin in any target pin hole on the workpiece. The X-axis module 321 and the Y-axis module 322 are linear motors; the drive of the Z-axis module 323 can be a servo electric cylinder, which has high positioning accuracy and controllable pressure when pressing the pin.

[0048] The grabbing unit 31 includes a clamping cylinder 311, and the clamping cylinder 311 drives the nail taking rod with the nail taking rod sleeve to extend and retract, so as to clamp the pin or release the pin.

[0049] The working process is as follows: after the pin positioning mechanism 12 takes the pin from the discharge port of the vibration plate 11 through the feeding pipe, the pin is moved to the fine positioning station through the transfer cylinder 123 for pin positioning; the grasping unit 31 clamps the pin from the fine positioning station and places it in the target pin hole on the workpiece, and then presses the pin through the servo electric cylinder, and unloads the material after the pressing is completed.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A press-fit pin device, comprising a frame, a workbench is provided on the frame, and the characteristics are: The workbench is provided with a feeding device (1), a workpiece positioning mechanism (2) for fixing the workpiece, and a riveting device (3) arranged above the feeding device (1) and the workpiece positioning mechanism (2); the feeding device (1) comprises a vibrating plate (11) and a pin positioning mechanism (12); The pin positioning mechanism (12) is arranged between the vibration plate (11) and the workpiece positioning mechanism (2), and comprises a feed stopper (125) with a material receiving hole (124) and a positioning receiving plate (127) with a positioning hole (126); the material receiving hole (124) is connected to the material outlet of the vibration plate (11); the feed stopper (125) is arranged at the upper end of the positioning receiving plate (127); the feed stopper (125) is driven by the feed driving member to position the material receiving hole (124) and the positioning hole (126) relative to each other; The riveting device (3) comprises a grabbing unit (31) for grabbing a pin from a positioning hole (126).

2. A press-fit pin device according to claim 1, characterized in that: The pin positioning mechanism (12) comprises a bottom plate (121) with a feed guide rail and a transfer plate (122) that can slide along the feed guide rail, the feed stopper (125) is arranged on the transfer plate (122), and the transfer plate (122) is fixedly arranged at the driving output end of the feed driving member.

3. A press-fit pin device according to claim 1, characterized in that: A positioning cylinder (128) is provided on one side of the positioning hole (126); a clamping groove (129) is provided on the feed stopper (125) along the positioning hole (126) and extending in the direction of the positioning cylinder (128); a pin positioning block (130) with a pin-shaped groove at the end is slidably connected in the clamping groove (129); and the pin positioning block (130) is fixedly arranged at the output end of the positioning cylinder (128).

4. A press-fit pin device according to claim 2, characterized in that: The transfer plate (122) is also provided with a clamping cylinder (131) with the same stroke direction as the feed drive member, and the feed stopper (125) is provided with a clamping hole (132) extending along the material receiving hole (124) in the direction of the clamping cylinder (131), and a clamping rod (133) is passed through the clamping hole (132) and fixedly connected to the output end of the clamping cylinder (131).

5. The press-fit pin device according to claim 1, characterized in that: The workpiece positioning mechanism (2) comprises a bearing platform (21) and positioning columns (22) arranged on the bearing platform (21) along the four corners of the workpiece.

6. A press-fit pin device according to claim 1, characterized in that: The workpiece positioning mechanism (2) further comprises a positioning pin (23) arranged along the circumference of the workpiece, wherein the positioning pin (23) corresponds to a positioning pin hole on the workpiece.

7. A press-fit pin device according to claim 1, characterized in that: The workpiece positioning mechanism (2) further comprises a rotary downward pressing cylinder (24) arranged around the workpiece, the output end of the rotary downward pressing cylinder (24) being connected to a downward pressing block (26) via a rotary arm (25), and the downward pressing block (26) being located above the workpiece.

8. The press-fit pin device according to claim 1, characterized in that: The grabbing unit (31) comprises a nail removing rod and a clamping cylinder (311) for driving the nail removing rod to extend and retract.

9. The press-fit pin device according to claim 1, characterized in that: The riveting device (3) further comprises a three-dimensional movable module (32), wherein the three-dimensional movable module (32) comprises an X-axis module (321) arranged in the same direction as the stroke of the feed drive member, a Y-axis module (322) perpendicular to the stroke of the feed drive member, and a Z-axis module (323) arranged in the vertical direction; the X-axis module (321) is slidably connected to the Y-axis module (322), the Z-axis module (323) is slidably connected to the X-axis module (321), and the gripping unit (31) is connected to the output end of the Z-axis module (323) and moves in the vertical direction.

10. A press-fit pin device according to claim 9, characterized in that: The Z-axis module (323) is driven by a servo electric cylinder.

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