An automated clamping processing device

Abstract

This utility model relates to the field of sheet metal processing technology, and in particular to an automatic clamping processing device, comprising: a clamping mechanism for automatically clamping workpieces, including: a support platform with a placement area on its top; a clamping part disposed on the support platform for clamping the workpiece; a pressing part disposed in the clamping part for pressing the workpiece; and at least two sets of first overload limiting parts disposed in the clamping part. The advantages of this utility model are: a third motor synchronously drives the first and second bidirectional lead screws via a synchronous belt and bevel gears, driving four sets of clamping blocks to synchronously clamp the workpiece from four directions. In the horizontal clamping stage, when the clamping blocks contact the workpiece, the bidirectional lead screws are obstructed, triggering the steel ball compression spring, causing the transmission mechanism to idle, adapting to the workpiece size and protecting the lead screws and motor. In the vertical pressing stage, when the pressing block contacts the top of the workpiece, the motor output torque exceeds the limit and idles, adapting to the workpiece size and preventing damage to thin-walled workpieces.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to an automatic clamping processing equipment. Background Technology

[0002] With the increasing application of sheet metal, the design of sheet metal parts has become a very important part of the product development process. Mechanical engineers must be proficient in the design skills of sheet metal parts so that the designed sheet metal can not only meet the functional and appearance requirements of the product, but also make the stamping die manufacturing simple and low-cost.

[0003] Traditional automatic clamping equipment for sheet metal processing requires manual adjustment of the stroke of existing screw-driven clamps to accommodate workpieces of different sizes, resulting in long downtime during changeovers.

[0004] To address this issue, this utility model proposes an automatic clamping processing device. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to provide an automatic clamping processing device to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, one embodiment of the present invention provides an automatic clamping processing device, comprising: a clamping mechanism for automatically clamping workpieces, including: a support platform having a placement area on its top; a clamping part disposed on the support platform for clamping the workpiece; a pressing part disposed in the clamping part for pressing the workpiece; at least two sets of first overload limiting parts disposed in the clamping part for assisting the clamping part in matching workpieces of different specifications; at least two sets of second overload limiting parts disposed in the pressing part for assisting the pressing part in matching workpieces of different specifications; an output part for providing drive to the clamping part; and an automatic feeding robot disposed adjacent to the clamping mechanism for transporting workpieces.

[0008] Preferably, as described in any of the above embodiments, a cross-shaped through groove is provided on the support platform; a first upright plate and a second upright plate are fixed to the bottom of the support platform; and a suction cup is fixed to the automatic feeding robot arm.

[0009] Preferably, according to any of the above embodiments, the clamping part includes: a first bidirectional lead screw rotatably mounted on a first vertical plate, both ends of the first bidirectional lead screw being threaded with a first slider, the first slider being movably mounted in a through groove, a first clamping block being fixed on the first slider, and a first connecting groove being provided on the first clamping block; and a second bidirectional lead screw rotatably mounted on a second vertical plate, both ends of the second bidirectional lead screw being threaded with a second slider, the second slider being slidably mounted in a through groove, a second clamping block being fixed on the second slider, and a second connecting groove being provided on the second clamping block.

[0010] Preferably, in any of the above schemes, the clamping part is provided in at least two sets, respectively provided on the first clamping block and the second clamping block, and is divided into a first clamping part and a second clamping part.

[0011] Preferably, in any of the above embodiments, the first pressing part includes: a first lead screw, rotatably disposed in a first connecting groove, a first sliding plate threaded on the first lead screw, the first sliding plate being slidably disposed in the first connecting groove, and a first pressing block fixed on the first sliding plate; a first motor, fixed to a first clamping block by a support block, and the output shaft of the first motor being connected to the first lead screw through one of a set of second overload limiting parts.

[0012] Preferably, in any of the above embodiments, the second pressing part includes: a second lead screw, rotatably disposed in a second connecting groove, a second sliding plate threaded on the second lead screw, the second sliding plate being slidably disposed in the second connecting groove, and a second pressing block fixed on the second sliding plate; a second motor, fixed to a second clamping block by a support block, and the output shaft of the second motor being connected to the second lead screw by another set of second overload limiting parts.

[0013] Preferably, according to any of the above embodiments, the output section includes: a transmission rod rotatably mounted on a positioning plate at the bottom of the support platform; a first bevel gear and a second bevel gear meshing with it, the first bevel gear being fixed to the transmission rod, and the second bevel gear being connected to a first bidirectional lead screw via one of a set of first overload limiting parts; a first synchronous pulley and a second synchronous pulley, the first synchronous pulley and the second synchronous pulley being connected by a synchronous belt, the first synchronous pulley being fixedly connected to the transmission rod, and the second synchronous pulley being connected to a second bidirectional lead screw via another set of overload limiting parts; and a third motor fixed to the bottom of the support platform, its output shaft being fixedly connected to the transmission rod.

[0014] Preferably, in any of the above embodiments, the single set of the first overload limiting part includes: a first positioning sleeve, rotatably disposed on a support plate at the top of the support platform, the first positioning sleeve having a first slot; a first cylindrical rod, rotatably disposed within the first positioning sleeve, the first cylindrical rod having a first hemispherical groove; a first steel ball, slidably disposed within the first slot for engaging with the first hemispherical groove; and a first spring, one end of which is fixed within the first slot, and the other end of which is fixedly connected to the first steel ball; wherein in one set of the first overload limiting part, the first positioning sleeve is fixedly connected to the second bevel gear, and the first cylindrical rod in that set is fixedly connected to the first double-acting lead screw; in another set of the first overload limiting part, the first positioning sleeve is fixedly connected to the second synchronous pulley, and the first cylindrical rod in that set is fixedly connected to the second double-acting lead screw.

[0015] Preferably, in any of the above embodiments, the single set of the second overload limiting part includes: a second positioning sleeve having a second slot; a second cylindrical rod rotatably disposed within the second positioning sleeve, the second cylindrical rod having a second hemispherical groove; a second steel ball slidably disposed within the second slot for engaging with the second hemispherical groove; and a second spring, one end of which is fixed within the second slot, and the other end of which is fixedly connected to the second steel ball; wherein the second positioning sleeve in one set of the second overload limiting part is fixedly connected to the output shaft of the first motor, and the first cylindrical rod in this set is fixedly connected to the first lead screw; and the second positioning sleeve in another set of the second overload limiting part is fixedly connected to the output shaft of the second motor, and the second cylindrical rod in this set is fixedly connected to the second lead screw.

[0016] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: The third motor synchronously drives the first and second bidirectional lead screws via a synchronous belt and bevel gears, which in turn drive the four sets of clamping blocks to clamp the workpiece synchronously from four directions. In the horizontal clamping stage, when the clamping blocks contact the workpiece, the bidirectional lead screws are obstructed and trigger the steel ball compression spring, causing the transmission mechanism to idle, adapting to the size of the workpiece and protecting the lead screws and motors. In the vertical pressing stage, when the pressing blocks contact the top of the workpiece, the motor output torque exceeds the limit and idles, adapting to the size of the workpiece and preventing damage to thin-walled workpieces.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2This is a schematic diagram of the clamping mechanism according to an embodiment of the present utility model; Figure 3 This is a cross-sectional schematic diagram of the first overload limiting part according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the connection of the first clamping block according to an embodiment of the present utility model; Figure 5 This is a cross-sectional schematic diagram of the second overload limiting part according to an embodiment of the present utility model; Figure 6 This is a schematic cross-sectional view of the first clamping block according to an embodiment of the present utility model; Figure 7 This is a cross-sectional schematic diagram of the second clamping block according to an embodiment of the present utility model.

[0019] In the diagram: 1. Clamping mechanism; 11. Support platform; 12. Clamping part; 1201. First bidirectional lead screw; 1202. First slider; 1203. First clamping block; 1204. Second bidirectional lead screw; 1205. Second slider; 1206. Second clamping block; 13. First pressing part; 1301. First lead screw; 1302. First sliding plate; 1303. First pressing block; 1304. First motor; 14. Second pressing part; 1401. Second lead screw; 1402. Second sliding plate; 1403. Second pressing block; 1404. Second motor; 1 5. First overload limiting part, 1501, first positioning sleeve, 1502, first cylindrical rod, 1503, first steel ball, 1504, first spring, 16. Second overload limiting part, 1601, second positioning sleeve, 1602, second cylindrical rod, 1603, second steel ball, 1604, second spring, 17. Output part, 1701, transmission rod, 1702, first bevel gear, 1703, second bevel gear, 1704, first synchronous pulley, 1705, second synchronous pulley, 1706, third motor, 2. Automatic feeding robot. Detailed Implementation

[0020] like Figures 1 to 7 As shown, an automatic clamping processing device includes a clamping mechanism 1 and an automatic feeding robot 2.

[0021] Furthermore, the clamping mechanism 1 is used for automatically clamping the workpiece, including: Support platform 11, with a placement area on its top; The clamping part 12 is provided on the support platform 11 and is used to clamp the workpiece; A clamping part is provided in the clamping part 12 for clamping the workpiece; At least two sets of first overload limiting parts 15 are provided in the clamping part 12 to assist the clamping part 12 in matching workpieces of different specifications. At least two sets of second overload limiting parts 16 are provided in the clamping part to assist the clamping part in matching workpieces of different specifications; Output section 17 is used to provide drive for clamping section 12.

[0022] Specifically, the support platform 11 is provided with a cross-shaped through groove; The bottom of the support platform 11 is fixed with a first vertical plate and a second vertical plate; The clamping part 12 includes: The first bidirectional lead screw 1201 is rotatably mounted on the first vertical plate. Both ends of the first bidirectional lead screw 1201 are threaded with a first slider 1202. The first slider 1202 is movably mounted in the through groove. A first clamping block 1203 is fixed on the first slider 1202. A first connecting groove is provided on the first clamping block 1203. The second bidirectional lead screw 1204 is rotatably mounted on the second vertical plate. Both ends of the second bidirectional lead screw 1204 are threaded with a second slider 1205. The second slider 1205 is slidably mounted in the through groove. A second clamping block 1206 is fixed on the second slider 1205. A second connecting groove is provided on the second clamping block 1206. The clamping part is provided in at least two sets, respectively provided on the first clamping block 1203 and the second clamping block 1206, and is divided into the first clamping part 13 and the second clamping part 14. The first clamping part 13 includes: A first lead screw 1301 is rotatably disposed in a first connecting groove. A first sliding plate 1302 is threaded on the first lead screw 1301. The first sliding plate 1302 is slidably disposed in the first connecting groove. A first pressure block 1303 is fixed on the first sliding plate 1302. The first motor 1304 is fixed to the first clamping block 1203 by a support block, and the output shaft of the first motor 1304 is connected to the first lead screw 1301 through one of the second overload limiting parts 16. The second clamping part 14 includes: The second lead screw 1401 is rotatably disposed in the second connecting groove. The second lead screw 1401 is threaded with a second sliding plate 1402. The second sliding plate 1402 is slidably disposed in the second connecting groove. The second pressure block 1403 is fixed on the second sliding plate 1402. The second motor 1404 is fixed to the second clamping block 1206 by a support block, and the output shaft of the second motor 1404 is connected to the second lead screw 1401 through another set of second overload limiting parts 16. The output unit 17 includes: The transmission rod 1701 is rotatably mounted on the positioning plate at the bottom of the support platform 11; A first bevel gear 1702 and a second bevel gear 1703 meshing with it, the first bevel gear 1702 being fixed to the transmission rod 1701, and the second bevel gear 1703 being connected to the first bidirectional lead screw 1201 through one of the first overload limiting parts 15; The first synchronous pulley 1704 and the second synchronous pulley 1705 are connected by a synchronous belt. The first synchronous pulley 1704 is fixedly connected to the transmission rod 1701. The second synchronous pulley 1705 is connected to the second bidirectional lead screw 1204 through another set of overload limiting parts. The third motor 1706 is fixed to the bottom of the support platform 11, and its output shaft is fixedly connected to the transmission rod 1701. The transmission rod 1701 is rotated by the third motor 1706, which in turn drives the first bevel gear 1702 and the first synchronous belt pulley 1704. The first overload limiting unit 15 of a single group includes: The first positioning sleeve 1501 is rotatably mounted on the support plate at the top of the support platform 11, and the first positioning sleeve 1501 has a first slot. The first cylindrical rod 1502 is rotatably disposed inside the first positioning sleeve 1501, and the first cylindrical rod 1502 is provided with a first hemispherical groove. The first steel ball 1503 is slidably disposed in the first slot to fit the first hemispherical groove; The first spring 1504 has one end fixed in the first slot and the other end fixedly connected to the first steel ball 1503. The first slot has a number of holes, and the corresponding number of first hemispherical grooves is also a number. The number of the first steel ball 1503 and the first spring 1504 are corresponding to the number of the first slots and the number of the first hemispherical grooves. In one group of the first overload limiting parts 15, the first positioning sleeve 1501 is fixedly connected to the second bevel gear 1703, and the first cylindrical rod 1502 in this group is fixedly connected to the first bidirectional lead screw 1201. In another set of the first overload limiting part 15, the first positioning sleeve 1501 is fixedly connected to the second synchronous pulley 1705, and the first cylindrical rod 1502 in this set is fixedly connected to the second bidirectional lead screw 1204. The single-unit second overload limiting part 16 includes: The second positioning sleeve 1601 has a second slot hole inside it; The second cylindrical rod 1602 is rotatably disposed inside the second positioning sleeve 1601, and a second hemispherical groove is provided on the second cylindrical rod 1602. The second steel ball 1603 is slidably disposed in the second slot to fit the second hemispherical groove; The second spring 1604 has one end fixed in the second slot and the other end fixedly connected to the second steel ball 1603. The second slot has a total of several holes, and the corresponding number of second hemispherical grooves is also several. The number of the second steel ball 1603 and the second spring 1604 are corresponding to the number of the second slots and the number of second hemispherical grooves. The second positioning sleeve 1601 in one of the second overload limiting parts 16 is fixedly connected to the output shaft of the first motor 1304, and the first cylindrical rod 1502 in this group is fixedly connected to the first lead screw 1301. In another set of the second overload limiting part 16, the second positioning sleeve 1601 is fixedly connected to the output shaft of the second motor 1404, and the second cylindrical rod 1602 in this set is fixedly connected to the second lead screw 1401. The first overload limiting unit 15 and the second overload limiting unit 16 operate on the same principle. The following example uses the principle of the first overload limiting unit 15: The first positioning sleeve 1501, which is fixed to the second bevel gear 1703, rotates. At this time, the first cylindrical rod 1502 rotates with the first positioning sleeve 1501 under the constraint of the first steel ball 1503 and the first spring 1504. The first cylindrical rod 1502 drives the first bidirectional lead screw 1201 to rotate. After the first clamping block 1203 clamps the workpiece, the rotation of the first bidirectional lead screw 1201 is blocked. At this time, the rotation of the first positioning sleeve 1501 will cause the first steel ball 1503 to move into the first slot under force, thereby squeezing the first spring 1504 and causing the first positioning sleeve 1501 to rotate freely.

[0023] Furthermore, the automatic feeding robot 2 is arranged adjacent to the clamping mechanism 1 and is used to transport workpieces; The automatic feeding robot 2 is equipped with a suction cup, which is used to adsorb sheet metal workpieces.

[0024] With the setting of the first overload limiting part 15 and the second overload limiting part 16, the device only needs to set the output stroke of the motor to a constant minimum value (generally based on the smallest workpiece that the device can clamp), without having to set the output stroke of the motor according to the size of the workpiece.

[0025] An automatic clamping processing device, the working principle of which is as follows: The automatic feeding robot 2 transports the sheet metal workpiece to the placement area on the support platform 11. The third motor 1706 drives the transmission rod 1701 to rotate. The rotation of the transmission rod 1701 synchronously drives the first bevel gear 1702 and the first synchronous pulley 1704 on it. The first bevel gear 1702 drives the second bevel gear 1703 to rotate. The first synchronous pulley 1704 drives the second synchronous pulley 1705 to rotate via the synchronous belt. The second bevel gear 1703 and the second pulley drive the first bidirectional lead screw 1201 and the second bidirectional lead screw 1204 via the first overload limiting part 15. The first bidirectional lead screw 1201 and the second bidirectional lead screw 1204 drive the first clamping block 1203 and the second clamping block 1206 to move, clamping and fixing the workpiece. The cooperation of the first overload limiting part 15 allows the first clamping block 1203 and the second clamping block 1206 to adapt to workpieces of different specifications. After the first clamping block 1203 and the second clamping block 1206 clamp the workpiece, the first motor 1304 and the second motor 1404, in cooperation with the second overload limiting part 16, drive the first lead screw 1301 and the second lead screw 1401 to rotate, thereby driving the first pressure block 1303 and the second pressure block 1403 to move and press the workpiece. The setting of the second overload limiting part 16 enables the first pressure block 1303 and the second pressure block 1403 to adaptively match the height of the workpiece.

Claims

1. An automatically clamped machining apparatus characterized by comprising: include: Clamping mechanisms, used for automatically clamping workpieces, include: A support platform with a placement area on top; A clamping part is provided on the support platform for clamping the workpiece; A clamping part, provided in the clamping part, is used to clamp the workpiece; At least two sets of first overload limiting parts are provided in the clamping part to assist the clamping part in matching workpieces of different specifications; At least two sets of second overload limiting parts are provided in the clamping part to assist the clamping part in matching workpieces of different specifications; The output section is used to provide drive for the clamping section; An automatic feeding robot, located adjacent to the clamping mechanism, is used to transport workpieces.

2. A self-clamping machining apparatus according to claim 1, characterized in that: A cross-shaped through groove is provided on the support platform; The bottom of the support platform is fixed with a first vertical plate and a second vertical plate; The automatic feeding robot arm is equipped with a suction cup.

3. A self-clamping machining apparatus according to claim 2, wherein: The clamping part includes: A first bidirectional lead screw is rotatably mounted on a first vertical plate. Both ends of the first bidirectional lead screw are threaded with a first slider. The first slider is movably mounted in a through groove. A first clamping block is fixed on the first slider. A first connecting groove is provided on the first clamping block. The second bidirectional lead screw is rotatably mounted on the second vertical plate. Both ends of the second bidirectional lead screw are threaded with second sliders. The second sliders are slidably mounted in the through groove. A second clamping block is fixed on the second slider. A second connecting groove is opened on the second clamping block.

4. The automatic clamping machining apparatus according to claim 3, characterized in that: The clamping part is provided in at least two sets, respectively provided on the first clamping block and the second clamping block, and is divided into the first clamping part and the second clamping part.

5. A self-clamping machining apparatus according to claim 4, wherein: The first clamping part includes: A first lead screw is rotatably disposed in a first connecting groove. A first sliding plate is threaded onto the first lead screw. The first sliding plate is slidably disposed in the first connecting groove. A first pressure block is fixed on the first sliding plate. The first motor is fixed to the first clamping block by a support block, and the output shaft of the first motor is connected to the first lead screw through one of the second overload limiting parts.

6. The automatic clamping machining apparatus according to claim 4, characterized in that: The second clamping part includes: The second lead screw is rotatably disposed in the second connecting groove. The second lead screw is threaded with a second sliding plate, which is slidably disposed in the second connecting groove. A second pressure block is fixed on the second sliding plate. The second motor is fixed to the second clamping block by a support block, and the output shaft of the second motor is connected to the second lead screw through another set of second overload limiting parts.

7. A self-clamping machining apparatus according to claim 6, wherein: The output section includes: The transmission rod is rotatably mounted on the positioning plate at the bottom of the support platform; A first bevel gear and a second bevel gear meshing with it, the first bevel gear being fixed on a transmission rod, and the second bevel gear being connected to a first bidirectional lead screw through one of a set of first overload limiting parts; A first synchronous pulley and a second synchronous pulley are connected by a synchronous belt. The first synchronous pulley is fixedly connected to the transmission rod, and the second synchronous pulley is connected to a second bidirectional lead screw through another set of overload limiting parts. The third motor is fixed to the bottom of the support platform, and its output shaft is fixedly connected to the transmission rod.

8. A self-clamping machining apparatus according to claim 7, wherein: The first overload limiting part of the single group includes: The first positioning sleeve is rotatably mounted on the support plate at the top of the support platform, and the first positioning sleeve has a first slot. The first cylindrical rod is rotatably arranged in the first positioning sleeve, and the first cylindrical rod is provided with a first hemispherical groove; The first steel ball is slidably arranged in the first slot hole, and is used for cooperating with the first hemispherical groove; The first spring is fixed at one end in the first slot hole, and is fixed at the other end to the first steel ball; The first positioning sleeve in one group of the first overload limiting parts is fixedly connected with the second bevel gear, and the first cylindrical rod in the group is fixedly connected with the first bidirectional screw rod; The first positioning sleeve in another group of the first overload limiting parts is fixedly connected with the second synchronous pulley, and the first cylindrical rod in the group is fixedly connected with the second bidirectional screw rod.

9. The automatic clamping machining apparatus according to claim 7, characterized in that: The single group of the second overload limiting parts comprises: The second positioning sleeve is provided with a second slot hole; The second cylindrical rod is rotatably arranged in the second positioning sleeve, and the second cylindrical rod is provided with a second hemispherical groove; The second steel ball is slidably arranged in the second slot hole, and is used for cooperating with the second hemispherical groove; The second spring is fixed at one end in the second slot hole, and is fixed at the other end to the second steel ball; The second positioning sleeve in one group of the second overload limiting parts is fixedly connected with the first motor output shaft, and the first cylindrical rod in the group is fixedly connected with the first screw rod; The second positioning sleeve in another group of the second overload limiting parts is fixedly connected with the second motor output shaft, and the second cylindrical rod in the group is fixedly connected with the second screw rod.

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