Anti-collision limiting mechanism of plate feeding device

Abstract

The utility model provides an anti-collision limiting mechanism of a plate feeding device, which aims to realize accurate control of clamping mechanisms of the plate feeding device and avoid collision between the clamping mechanisms, and comprises a feeding frame, an anti-collision limiting mechanism and a limiting mechanism, the clamping mechanism comprises a front-end clamping mechanism and a rear-end clamping mechanism which are respectively connected to the front part and the rear part of the feeding frame in a sliding manner; the limiting mechanism comprises induction blocks arranged at the front end, the rear end and the middle of the feeding frame, and proximity switches used for being matched with the induction blocks for limiting are arranged on the front-end clamping mechanism and the rear-end clamping mechanism correspondingly; the anti-collision mechanism comprises limiting plates fixedly connected to the two side faces, close to each other, of the front-end clamping mechanism and the rear-end clamping mechanism, and the sum of the lengths of the two limiting plates is larger than the length of a plate to be clamped. And the clamping mechanism is prevented from colliding when the plates are connected.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, and in particular to an anti-collision limiting mechanism for a sheet metal feeding device. Background Technology

[0002] Existing board production lines typically require two or more processing units to complete processes such as board drilling / marking. The board feeding device usually only contains one set of clamping mechanisms and can only process according to the order of the processing units, which greatly reduces the processing efficiency of the board production line.

[0003] Even if a layout with two sets of clamping mechanisms is adopted, if the anti-collision and limit functions between the two sets of clamping mechanisms are not properly set, it will inevitably affect the stability and reliability of the plate feeding device.

[0004] like Figure 12 The sheet metal processing production line shown has two processing units. The conveyor roller 13 passes through the first processing unit 11 and the second processing unit 12 from front to back. The two clamping mechanisms exchange the sheet metal in the junction area in the middle of the conveyor roller 13 to perform secondary positioning of the sheet metal (including side positioning using a side-pushing cylinder and end-distance positioning using a position switch). Therefore, the position of the clamping mechanism in the front-back direction needs to be precisely controlled. However, in the actual production process, when the front clamping mechanism returns after the exchange, the rear clamping mechanism slides forward. There is a problem that the front clamping mechanism returns slowly or stops, while the rear clamping mechanism slides forward quickly, causing them to collide and resulting in damage to parts. Utility Model Content

[0005] This utility model provides an anti-collision limiting mechanism for a sheet metal feeding device, so as to achieve precise control of the clamping mechanism of the sheet metal feeding device and avoid collisions between the clamping mechanisms. To achieve the above objective, the technical solution adopted is as follows:

[0006] A collision-prevention and limiting mechanism for a sheet metal feeding device, characterized in that it comprises:

[0007] Feeding rack;

[0008] The clamping mechanism includes a front clamping mechanism and a rear clamping mechanism that are slidably connected to the front and rear of the feeder, respectively;

[0009] The limiting mechanism includes sensing blocks disposed at the front and rear ends and the middle of the feeding rack. The front clamping mechanism and the rear clamping mechanism are respectively provided with proximity switches for cooperating with the sensing blocks to limit the movement.

[0010] The anti-collision mechanism includes limiting plates fixedly connected to the two sides of the front clamping mechanism and the rear clamping mechanism that are close to each other, and the sum of the lengths of the two sets of limiting plates is greater than the length of the plate to be clamped.

[0011] Furthermore, both the front-end clamping mechanism and the rear-end clamping mechanism consist of a sliding plate and a clamping clamp fixedly connected to one side of the sliding plate.

[0012] Furthermore, the front-end clamping mechanism and the rear-end clamping mechanism are also provided with a drive mechanism for driving the clamping pliers to slide along the length direction of the feeder.

[0013] Furthermore, the drive mechanism includes a drive motor, a guide rail, and a rack. The guide rail and the rack are both fixedly connected to the feeding frame and their lengths are distributed along the length direction of the feeding frame. The slide plate is slidably connected to the guide rail. The drive motor is fixedly connected to the slide plate and its output end is meshed with the rack for transmission.

[0014] Furthermore, the limiting mechanism includes a first sensing block, a second sensing block, a third sensing block, and a fourth sensing block fixedly connected to the feeding rack, a first proximity switch and a second proximity switch disposed at the front end of the front clamping mechanism, and a third proximity switch and a fourth proximity switch disposed at the rear end of the rear clamping mechanism. The first sensing block and the second sensing block are respectively located on the front and rear sides of the front clamping mechanism in the length direction of the feeding rack, and the third sensing block and the fourth sensing block are respectively located on the front and rear sides of the rear clamping mechanism in the length direction of the feeding rack.

[0015] Furthermore, the limiting plate includes a front limiting plate and a rear limiting plate, which are fixedly connected to the rear end of the front clamping mechanism and the front end of the rear clamping mechanism, respectively. A front sensing plate and a front sensing block are fixedly connected to the end of the front limiting plate near the rear clamping mechanism, and a rear sensing plate and a rear sensing block are fixedly connected to the end of the rear limiting plate near the front clamping mechanism. When the front clamping mechanism and the rear clamping mechanism are close to each other, the front sensing block and the rear sensing plate cooperate to send signals, and the rear sensing block and the front sensing plate cooperate to send signals.

[0016] Furthermore, the anti-collision mechanism also includes a front anti-collision block and a rear anti-collision block disposed at the front and rear ends above the feeding rack. The front end of the front clamping mechanism and the rear end of the rear clamping mechanism are respectively provided with front anti-collision plates and rear anti-collision plates that are distributed and cooperate with the front anti-collision block and the rear anti-collision block to limit their positions.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By setting induction blocks and proximity switches on the feeding rack, the range of reciprocating movement of the front clamping mechanism and the rear clamping mechanism is limited, thereby realizing the reciprocating cycle of the two sets of clamping mechanisms, increasing the operating frequency of the clamping mechanisms, and thus improving the efficiency of sheet metal processing.

[0019] 2. A limiting plate is set between the two clamping mechanisms. The sum of the lengths of the two limiting plates is greater than the length of the plate. This can prevent the front clamping mechanism from moving to the handover area to clamp the plate before the back clamping mechanism leaves the handover area due to the limiting plate being too short. This ensures that the front clamping mechanism is in the loose state when the back clamping mechanism is in the handover area.

[0020] 3. The limiting plate between the two clamping mechanisms is equipped with sensing blocks and sensing plates. When both sets of sensing blocks emit signals, the rear clamping mechanism can be controlled to stop sliding forward or the front clamping mechanism can be controlled to accelerate sliding forward, so as to avoid collision between the two clamping mechanisms when handing over semi-finished products and ensure that the two clamping mechanisms operate stably within the limited area. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 A schematic diagram of the connection structure between the front clamping mechanism and the feeding rack.

[0023] Figure 3 This is a top view of the present invention after being rotated 90° clockwise.

[0024] Figure 4 for Figure 3 Enlarged view of part A in the middle

[0025] Figure 5 for Figure 3 Enlarged view of part B in the middle

[0026] Figure 6 for Figure 3 CC section view

[0027] Figure 7 This is a schematic diagram of the connection structure between the rear clamping mechanism and the feeding rack.

[0028] Figure 8 for Figure 7 Enlarged view of part D in the middle

[0029] Figure 9 for Figure 7 Enlarged view of part E in the middle

[0030] Figure 10 A schematic diagram of the collision states between the front-end and rear-end clamping mechanisms.

[0031] Figure 11 for Figure 10 Enlarged view of part F in the middle

[0032] Figure 12 This is a schematic diagram of the working state of this device.

[0033] in:

[0034] 1-Feeding base;

[0035] 2-Feeding rack, 201-Guide rail, 202-Rack, 203-First sensing block, 204-Second sensing block, 205-Third sensing block, 206-Fourth sensing block, 207-Gear;

[0036] 3-Front-end clamping mechanism, 301-Front-end sliding plate, 302-Front-end clamping clamp, 303-Front-end switch fixing bracket, 304-First proximity switch, 305-Second proximity switch, 306-Front-end limiting plate, 307-Front-end sensing plate, 308-Front-end sensing block, 309-Front-end anti-collision plate;

[0037] 4-Rear end clamping mechanism, 401-Rear end slide plate, 402-Rear end clamping clamp, 403-Rear end switch fixing bracket, 404-Third proximity switch, 405-Fourth proximity switch, 406-Rear end limit plate, 407-Rear end sensing plate, 408-Rear end sensing block, 409-Rear end anti-collision plate, 410-Slider;

[0038] 5-First drive motor; 6-Second drive motor; 7-Front end limit frame; 8-Front end anti-collision block; 9-Rear end limit frame; 10-Rear end anti-collision block; 11-First processing unit; 12-Second processing unit; 13-Material conveyor roller. Detailed Implementation

[0039] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0040] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the view direction or positional relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0041] In this embodiment, for ease of description, the processing direction of the sheet metal is taken as the front-to-back direction, and the width direction of the sheet metal is taken as the left-to-right direction.

[0042] like Figures 1-11The anti-collision limiting mechanism of the sheet material feeding device shown includes a feeding base 1, a feeding frame 2, a front clamping mechanism 3, and a rear clamping mechanism 4. The feeding frame 2 is fixedly connected above multiple sets of feeding bases 1 and is distributed along the front-to-back direction, i.e., along the sheet material processing direction. The front clamping mechanism 3 and the rear clamping mechanism 4 are located at the front and rear ends of the feeding frame 2, respectively. Both the front clamping mechanism 3 and the rear clamping mechanism 4 are provided with a driving mechanism to drive them to slide and connect to the feeding frame 2 along the front-to-back direction. A limiting mechanism and an anti-collision mechanism are provided between the feeding frame 2 and the front clamping mechanism 3 and the rear clamping mechanism 4 to limit their displacement range on the feeding frame 2 and to prevent collisions.

[0043] Specifically, such as Figure 2 As shown, the upper surface of the feeding rack 2 is provided with guide rail 201 and rack 202. There are two sets of guide rail 201, which are fixedly connected to the left and right sides of the upper surface of the feeding rack 2 respectively. The rack 202 is fixedly connected to the upper surface of the feeding rack 2 and is located in the middle of the two guide rails 201. The lengths of the guide rail 201 and the rack 202 are distributed along the front and back direction.

[0044] like Figure 2 As shown, the front clamping mechanism 3 includes a front sliding plate 301 and a front clamping clamp 302. Slider blocks that slide and cooperate with the guide rail 201 are fixedly connected to the left and right sides of the lower end face of the front sliding plate 301. Two sets of front clamping clamps 302 are provided, spaced apart and fixedly connected to the right side of the front sliding plate 301. The housing of the first drive motor 5 is fixedly connected above the front sliding plate 301. Its output shaft vertically passes through the front sliding plate 301 and is coaxially fixedly connected to a gear 207. The gear 207 meshes with the rack 202 for transmission. The first drive motor 5 can drive the front sliding plate 301 to slide back and forth along the length of the rack 202. Figure 6 and Figure 7 As shown, the rear clamping mechanism 4 includes a rear slide plate 401 and a rear clamping clamp 402. The left and right sides of the lower end face of the rear slide plate 401 are fixedly connected with sliders 410 for sliding back and forth in cooperation with the guide rail 201. Two sets of rear clamping clamps 402 are provided, and the two sets of rear clamping clamps 402 are distributed back and forth at intervals and fixedly connected to the right side of the rear slide plate 401. A second drive motor 6 is fixedly connected above the rear slide plate 401. The output shaft of the second drive motor 6 passes through the rear slide plate 401 and is coaxially fixedly connected to a gear 207 that meshes with and is connected to the rack 201. The second drive motor 6 can drive the rear clamping mechanism 4 to slide back and forth above the feeding rack 2.

[0045] Limiting mechanisms such as Figures 3-5 , Figures 7-8As shown, the device includes a first sensing block 203, a second sensing block 204, a third sensing block 205, and a fourth sensing block 206. The first sensing block 203 and the fourth sensing block 206 are fixedly connected to the front and rear ends of the feeding rack 2, respectively. The first sensing block 203 is located at the front end of the front clamping mechanism 3, and the fourth sensing block 206 is located at the rear end of the rear clamping mechanism 4. The second sensing block 204 and the third sensing block 205 are spaced apart and fixedly connected to the middle of the feeding rack 2. A front switch fixing bracket 303 is fixedly connected to the front end of the front clamping mechanism 3. The front switch fixing bracket 303... A first proximity switch 304 and a second proximity switch 305 are fixedly connected at a distance from each other. A rear-end switch mounting bracket 403 is fixedly connected to the rear end of the rear-end clamping mechanism 4. A third proximity switch 404 and a fourth proximity switch 405 are fixedly connected at a distance from each other on the rear-end switch mounting bracket 403. The first sensing block 203 and the second sensing block 204 cooperate with the first proximity switch 304 and the second proximity switch 305, respectively. When the first proximity switch 304 on the front-end clamping mechanism 3 slides to the first sensing block 203, a signal is sent to control the first drive motor 5 to stop operating, thereby limiting the front end of the front-end clamping mechanism 3. When the second proximity switch 305 slides backward to the second sensing block 204, the two work together to signal and control the first drive motor 5 to stop, thus limiting the rear position of the front clamping mechanism 3. Similarly, the rear clamping mechanism 4 uses the third proximity switch 404 and the third sensing block 205 to signal and limit the front limit position of the rear clamping mechanism 4, and uses the fourth proximity switch 405 and the fourth sensing block 206 to signal and limit the rear limit position of the rear clamping mechanism. Furthermore, when the first sensing block 203 and the first proximity switch 304 signal, it marks the initial position of the front clamping mechanism 3. When the front clamping mechanism 3 slides backward to the second sensing block 204, the second proximity switch 304 and the second sensing block 204 cooperate to send a signal. At this time, the front clamping mechanism 3 releases the plate and places it on the transfer platform at this position, and slides forward until the first sensing block 203 and the first proximity switch 304 send a signal. At the same time, the rear clamping mechanism 4 slides forward to the third sensing block 205 until the third proximity switch 404 and the third sensing block 205 cooperate to send a signal. At this time, the rear clamping clamp 402 clamps the plate and transports it to the processing unit corresponding to the rear clamping mechanism 4, thereby completing the transfer of the plate.

[0046] Collision avoidance mechanisms such as Figure 2 , Figure 7 , Figures 9-11As shown, the device includes a front limiting plate 306 and a rear limiting plate 406. The front limiting plate 306 is fixedly connected to the rear end of the front clamping mechanism 3 and its length is distributed along the front-rear direction. The rear limiting plate 406 is fixedly connected to the front end of the rear clamping mechanism 4 and its length is distributed along the front-rear direction. Furthermore, a front sensing plate 307 and a front sensing block 308 are fixedly connected to the rear end of the front limiting plate 306, and a rear sensing plate 407 and a rear sensing block 408 are fixedly connected to the front end of the rear limiting plate 406. 406 The sum of the lengths of the two is greater than the length of the sheet metal. This avoids the situation where the rear clamping mechanism 4 slides to the junction area to clamp the sheet metal before the front clamping mechanism 3 has slid forward to reset. When the front clamping mechanism 3 places the sheet metal on the junction platform and returns to its initial position, the rear clamping mechanism 4 slides forward. If the front clamping mechanism 3 slides too slowly or the rear clamping mechanism 4 slides too quickly, or for other reasons, the rear limiting plate 406 may collide with the front limiting plate 306. To avoid this situation, an extreme position is taken, i.e., as shown... Figure 10 and Figure 11 In the state shown, the front clamping mechanism 3 has not moved forward, and the rear clamping mechanism 4 has slid forward into place. At this time, the front sensing block 308 and the rear sensing plate 407 cooperate to send signals. When both conditions are met, the second drive motor 6 is controlled to stop working to avoid the rear limit plate 406 from colliding with the front limit plate 306.

[0047] In addition, such as Figure 2 , Figure 4 , Figures 7-8As shown, the anti-collision structure also includes a front limiting frame 7, a front anti-collision block 8, a rear limiting frame 9, and a rear anti-collision block 10. The front anti-collision block 8 is fixedly connected to the front end of the feeding rack 2 via the front limiting frame 7, and the rear anti-collision block 10 is fixedly connected to the rear end of the feeding rack 2 via the rear limiting frame 9. Furthermore, a front anti-collision plate 309 is fixedly connected to the front end below the front sliding plate 301, and a rear anti-collision plate 409 is fixedly connected to the rear end below the rear sliding plate 401. The front anti-collision plate 309 and the front anti-collision block 8 are positioned correspondingly. The front clamping mechanism 3 is limited by the cooperation of the front anti-collision plate 309 and the front anti-collision block 8 to prevent the front clamping mechanism 3 from sliding forward. The rear anti-collision plate 409... The rear anti-collision block 9 is distributed in a corresponding position to the rear anti-collision block 10. The rear clamping mechanism 4 is limited by the rear anti-collision plate 409 and the rear anti-collision block 10 to prevent the rear clamping mechanism 4 from sliding out from the rear. The front anti-collision block 8 and the rear anti-collision block 10 are both made of rubber. It should be noted that when the first proximity switch 304 and the first sensing block 203 cooperate to send a signal, the front anti-collision plate 309 and the front anti-collision block 8 are not in contact. When the fourth proximity switch 405 and the fourth sensing block 206 cooperate to send a signal, the rear anti-collision plate 409 and the rear anti-collision block 10 are not in contact. The anti-collision block and anti-collision plate structure serves as an end physical anti-collision mechanism to prevent the clamping mechanism from sliding out of the feeder 2 after the proximity switch and sensing block fail.

[0048] The working principle of this device is as follows:

[0049] This embodiment requires an explanation of the application scenarios of this device, such as... Figure 12As shown, a feeding roller conveyor 13 is provided on the side of the feeding frame 2 near the clamping clamp. The feeding roller conveyor 13 and the feeding frame 2 pass through the first processing unit 11 and the second processing unit 12 from front to back. The middle part of the feeding roller conveyor 13 between the two processing units is the junction area, which corresponds to the second sensing block 204 and the third sensing block 205. The front clamping mechanism 3 can slide back and forth between the front end of the feeding frame 2 and the second sensing block 204, and the rear clamping mechanism 4 can slide back and forth between the rear end of the feeding frame 2 and the third sensing block 205. Initially... In the current position, the front clamping mechanism 3 is located at the front of the feeding rack 2. At this time, the first sensing block 203 and the first proximity switch 302 cooperate to send signals (and the front anti-collision plate 309 and the front anti-collision block 8 are not in contact). The rear clamping mechanism is located at the rear of the feeding rack 2. At this time, the fourth sensing block 206 and the fourth proximity switch 405 cooperate to send signals (and the rear anti-collision plate 409 and the rear anti-collision block 10 are not in contact). After the manual or palletizing robot places the board at the front of the conveyor roller 13, the front clamping clamp 302 clamps the board and drives it through the first drive motor 5. The front clamping mechanism 3 slides backward to the first processing unit for processing. After processing, it continues to slide backward to the junction area until the second proximity switch 305 and the second sensing block 204 cooperate to send a signal. At this time, the front clamping clamp 302 releases the plate and places it on the conveyor roller in the junction area. The first drive motor 5 drives the front clamping mechanism 3 to slide forward back to the initial position at the front of the feeder. At this time, the plate in the junction area can be repositioned manually or by other devices to adjust its sides and end distances. At the same time, the rear clamping mechanism 4 is activated by the second drive motor 6. Driven by the second drive motor 6, the plate moves forward until the third proximity switch 404 and the third sensing block 205 cooperate to send a signal. At this time, the rear clamping clamp 402 clamps the plate and moves backward to the second processing unit for processing under the drive of the second drive motor 6. After processing is completed, it continues to move backward until the fourth sensing block 206 and the fourth proximity switch 405 cooperate to send a signal and then stops. The rear clamping clamp 402 releases the plate and the finished plate is removed by manual labor or a palletizing robot and placed in the finished product area, completing one processing of the plate. Subsequent reciprocating actions can realize uninterrupted processing of the plate.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A kind of anti-collision limiting mechanism of plate feeding device, it is characterized in that, include: Feeding rack; The clamping mechanism includes a front clamping mechanism and a rear clamping mechanism that are slidably connected to the front and rear of the feeder, respectively; The limiting mechanism includes sensing blocks disposed at the front and rear ends and the middle of the feeding rack. The front clamping mechanism and the rear clamping mechanism are respectively provided with proximity switches for cooperating with the sensing blocks to limit the movement. The anti-collision mechanism includes limiting plates fixedly connected to the two sides of the front clamping mechanism and the rear clamping mechanism that are close to each other, and the sum of the lengths of the two sets of limiting plates is greater than the length of the plate to be clamped.

2. The anti-collision limiting mechanism of the plate feeding device according to claim 1, characterized in that, Both the front-end clamping mechanism and the rear-end clamping mechanism consist of a sliding plate and clamping clamps fixedly connected to one side of the sliding plate.

3. The anti-collision limiting mechanism of the plate feeding device according to claim 2, characterized in that, The front-end clamping mechanism and the rear-end clamping mechanism are also provided with a drive mechanism for driving the clamping pliers to slide along the length direction of the feeder.

4. The anti-collision stopper of the plate feeding device according to claim 3, wherein, The drive mechanism includes a drive motor, a guide rail, and a rack. The guide rail and the rack are both fixedly connected to the feeding frame and their lengths are distributed along the length direction of the feeding frame. The slide plate is slidably connected to the guide rail. The drive motor is fixedly connected to the slide plate and its output end is meshed with the rack for transmission.

5. The anti-collision stopper of the sheet feeding device according to claim 1, wherein The limiting mechanism includes a first sensing block, a second sensing block, a third sensing block, and a fourth sensing block fixedly connected to the feeding rack; a first proximity switch and a second proximity switch disposed at the front end of the front clamping mechanism; and a third proximity switch and a fourth proximity switch disposed at the rear end of the rear clamping mechanism. The first sensing block and the second sensing block are respectively located on the front and rear sides of the front clamping mechanism along the length of the feeding rack, and the third sensing block and the fourth sensing block are respectively located on the front and rear sides of the rear clamping mechanism along the length of the feeding rack.

6. The anti-collision stopper of the sheet feeding device according to claim 1, wherein The limiting plate includes a front limiting plate and a rear limiting plate, which are fixedly connected to the rear end of the front clamping mechanism and the front end of the rear clamping mechanism, respectively. A front sensing plate and a front sensing block are fixedly connected to the end of the front limiting plate near the rear clamping mechanism, and a rear sensing plate and a rear sensing block are fixedly connected to the end of the rear limiting plate near the front clamping mechanism. When the front clamping mechanism and the rear clamping mechanism are close to each other, the front sensing block and the rear sensing plate cooperate to send signals, and the rear sensing block and the front sensing plate cooperate to send signals.

7. The anti-collision stopper of a sheet feeding device according to claim 1 or 6, wherein The anti-collision mechanism also includes a front anti-collision block and a rear anti-collision block disposed at the front and rear ends above the feeding rack. The front end of the front clamping mechanism and the rear end of the rear clamping mechanism are respectively provided with front anti-collision plates and rear anti-collision plates that are distributed and cooperate with the front anti-collision block and the rear anti-collision block to limit their positions.

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