Workpiece clamping device and workpiece clamping method

Abstract

The invention belongs to the technical field of part machining, and discloses a workpiece clamping device and a workpiece clamping method. The workpiece clamping device comprises a clamping seat, a horizontal clamping unit and a vertical clamping unit, a vertical positioning groove and at least one vertical clamping groove are formed in the clamping seat, and the vertical positioning groove and the vertical clamping groove are both used for containing the thin wall of a workpiece; the horizontal clamping unit comprises a vertical positioning groove and a clamping plate arranged in a vertical clamping groove, and the clamping plate in the vertical positioning groove can be close to the thin wall of the workpiece along the X axis so that the thin wall of the workpiece can abut against the wall face of the vertical positioning groove. The two clamping plates in the vertical clamping groove can get close to each other along the X axis so as to abut against the two sides of the thin wall of the workpiece and clamp the thin wall of the workpiece. The vertical clamping unit comprises an abutting assembly, and the abutting assembly can abut against the upper end face of the thin wall of the workpiece in the vertical direction. The workpiece clamping device is simple in structure, convenient to operate and capable of effectively positioning and clamping the thin wall of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of parts processing, and in particular to a workpiece clamping device and a workpiece clamping method. Background Art

[0002] When processing thin-walled parts, there are usually difficulties such as difficulty in ensuring the clamping force of the fixture and the deviation of the clamping angle of the parts due to manual clamping of the parts, which leads to problems such as out-of-tolerance finished product size and structural damage during processing of thin-walled parts. Currently, in the aerospace field, thin-walled parts often need to be processed. If the clamping of thin-walled parts is unstable, the thin-walled parts are prone to vibration and deviation during processing, and ultimately the processing quality of thin-walled parts does not meet the precision requirements of aerospace.

[0003] Traditional clamping tools are mostly suitable for single thin-walled parts with simple structures and cannot effectively clamp multi-thin-walled parts. In addition, traditional clamping tools can only produce a single-direction clamping force on the parts and cannot effectively prevent the vibration and displacement of the parts during the processing. Summary of the invention

[0004] The object of the present invention is to provide a workpiece clamping device and a workpiece clamping method, which can effectively position and clamp the thin wall of the workpiece, have a simple structure and are easy to operate.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Workpiece clamping device, comprising:

[0007] A clamping seat, wherein a vertical positioning groove and at least one vertical clamping groove are formed on the clamping seat, wherein the vertical positioning groove and the at least one vertical clamping groove are used to accommodate the thin wall of the workpiece;

[0008] A horizontal clamping unit, the horizontal clamping unit comprising clamping plates arranged in the vertical positioning groove and the vertical clamping groove, one clamping plate is arranged in the vertical positioning groove, and two clamping plates are arranged oppositely in the vertical clamping groove, the clamping plate in the vertical positioning groove can approach the thin wall of the workpiece along the X-axis to press the thin wall of the workpiece against the wall surface of the vertical positioning groove; the two clamping plates in the vertical clamping groove can approach each other along the X-axis to press against both sides of the thin wall of the workpiece and clamp the thin wall of the workpiece respectively;

[0009] A vertical clamping unit, the vertical clamping unit comprises an abutment assembly, the abutment assembly is arranged on the clamping seat in an adjustable height, and the abutment assembly can abut against the upper end surface of the thin wall of the workpiece in the vertical direction.

[0010] Preferably, a first sliding groove is provided on the bottom surface of the vertical positioning groove and the bottom surface of the vertical clamping groove along the X-axis direction, and a convex portion matching the first sliding groove is provided on the clamping plate, and the convex portion is arranged in the first sliding groove and slidingly cooperates with the first sliding groove.

[0011] Preferably, the horizontal clamping unit also includes a clamping transmission assembly, which includes a worm, a gear and a connecting mechanism, the worm is arranged on the clamping seat, the gear is meshed with the gear, one end of the connecting mechanism is connected to the gear, and the other end of the connecting mechanism is connected to the clamping plate, and the rotation of the worm can drive the gear to move along the X-axis, so that the connecting mechanism drives the clamping plate to move along the X-axis.

[0012] Preferably, a plurality of connecting shafts are evenly arranged on the clamping plate, and the plurality of connecting shafts are all connected to the connecting mechanism.

[0013] Preferably, the horizontal clamping unit further comprises a crank, and the crank is arranged on the worm.

[0014] Preferably, the clamping transmission assembly also includes a limit shaft and a bearing, the limit shaft is inserted into the gear and connected to the gear key, the bearing is sleeved on the limit shaft, the limit shaft cooperates with the inner ring of the bearing, and the outer ring of the bearing cooperates with the connecting mechanism; a second slide groove is opened on the clamping seat along the X-axis direction, and the end of the limit shaft extends into the second slide groove and slidably cooperates with the second slide groove.

[0015] Preferably, the vertical clamping unit further comprises a first mounting shaft and a rotating block, wherein the first mounting shaft is connected to the clamping seat, the rotating block is rotatably disposed on the first mounting shaft, and the abutment assembly is height-adjustably disposed on the rotating block.

[0016] Preferably, the vertical clamping unit further comprises a second mounting shaft, the second mounting shaft is arranged on the clamping seat, the first mounting shaft is movably inserted into the second mounting shaft, and positioning pin holes are provided on the first mounting shaft and the second mounting shaft along the height direction.

[0017] Preferably, a fixing ear plate is provided on the clamping seat.

[0018] A workpiece clamping method, using the above-mentioned workpiece clamping device, comprises the following steps:

[0019] S1, fixing the clamping seat at a designated position on the processing table;

[0020] S2, placing one of the thin walls of the workpiece into the vertical positioning groove, and placing the remaining thin walls of the workpiece into at least one of the vertical clamping grooves, respectively, and using the clamping plates in the vertical positioning grooves to press the thin walls of the workpiece against the wall surface of the vertical positioning grooves;

[0021] S3, using the clamping plate in the vertical clamping groove to clamp the thin wall of the workpiece;

[0022] S4. Adjust the height of the abutment assembly according to the size of the thin wall of the workpiece, and use the abutment assembly to abut against the upper end surface of the thin wall of the workpiece.

[0023] The beneficial effects of the present invention are:

[0024] The workpiece clamping device provided by the present invention has a vertical positioning groove for accommodating the thin wall of the workpiece and a clamping plate that can move along the X-axis is provided in the vertical positioning groove, and the clamping plate in the vertical positioning groove can press the thin wall of the workpiece against the wall surface of the vertical positioning groove. Therefore, the vertical positioning groove can play a role in positioning and initially tightening the workpiece before processing, so that the workpiece is in a standard position during each processing, thereby ensuring the processing accuracy and processing quality of the workpiece; since two clamping plates are relatively provided in the vertical clamping groove, the two clamping plates can approach the thin wall of the workpiece along the X-axis to clamp the workpiece, thereby achieving clamping and fixing of the workpiece; since the abutment assembly is provided on the clamping seat and the abutment assembly can press against the thin wall of the workpiece in the vertical direction. The upper end surface of the wall, so the vertical clamping unit can vertically clamp and fix the workpiece, effectively preventing the workpiece from vibrating or deviating up and down during processing, and further improving the stability of the workpiece clamping; and because the abutment component is height-adjustably arranged on the clamping seat, the vertical clamping unit can be suitable for workpieces of different sizes; because the clamping seat is provided with at least one vertical clamping groove for accommodating the thin wall of the workpiece, a workpiece with a multi-thin-wall structure can be placed in the clamping seat, and the workpiece clamping device can clamp complex workpieces with a multi-thin-wall structure, which solves the problem that traditional single-thin-wall clamping devices cannot effectively clamp multi-thin-wall workpieces, and expands the application range of the workpiece clamping device.

[0025] When using the workpiece clamping method, first, the thin wall of the workpiece is placed in the vertical positioning groove and the vertical clamping groove, and the clamping plate in the vertical positioning groove is used to position and pre-tighten the workpiece so that the workpiece is located at a predetermined position on the processing table, thereby ensuring the processing quality and processing accuracy of the workpiece; then, the clamping plate in the vertical clamping groove is used to clamp and fix the remaining thin wall of the workpiece, and the abutment component of the vertical clamping unit is used to press vertically against the upper end surface of the thin wall, thereby clamping and fixing the workpiece, thereby improving the stability of the workpiece during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a workpiece clamping device provided by a specific embodiment of the present invention from a first perspective;

[0027] Figure 2 is a schematic structural diagram of a workpiece clamping device provided by a specific embodiment of the present invention from a second viewing angle;

[0028] Figure 3 It is a structural schematic diagram of a clamping transmission assembly provided in a specific embodiment of the present invention;

[0029] Figure 4 It is a top view of a clamping transmission assembly provided in a specific embodiment of the present invention.

[0030] In the figure:

[0031] 1-clamping seat; 11-vertical positioning groove; 12-vertical clamping groove; 13-first slide groove; 14-fixed ear plate;

[0032] 2- horizontal clamping unit; 21- clamping plate; 211- protrusion; 212- connecting shaft; 22- clamping transmission assembly; 221- worm; 222- gear; 223- connecting mechanism; 2231- connecting plate; 2232- actuating block; 2233- inner plate; 23- crank handle;

[0033] 3-vertical clamping unit; 31-abutment assembly; 32-first mounting axis; 321-positioning pin hole; 33-rotating block; 34-second mounting axis. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] like Figure 1 and Figure 2As shown, the present invention provides a workpiece clamping device, including a clamping seat 1, a horizontal clamping unit 2 and a vertical clamping unit 3. The clamping seat 1 is provided with a vertical positioning groove 11 and at least one vertical clamping groove 12, and the vertical positioning groove 11 and the at least one vertical clamping groove 12 are both used to accommodate the thin wall of the workpiece; the horizontal clamping unit 2 includes a clamping plate 21 arranged in the vertical positioning groove 11 and the vertical clamping groove 12, a clamping plate 21 is arranged in the vertical positioning groove 11, and two clamping plates 21 are relatively arranged in the vertical clamping groove 12, the clamping plate 21 in the vertical positioning groove 11 can approach the thin wall of the workpiece along the X-axis to press the thin wall of the workpiece against the wall surface of the vertical positioning groove 11; the two clamping plates 21 in the vertical clamping groove 12 can approach each other along the X-axis to respectively press against the two sides of the thin wall of the workpiece and clamp the thin wall of the workpiece. In this embodiment, the direction of the X-axis is the horizontal direction, and the clamping plate 21 can move along the positive direction of the X-axis as well as the negative direction of the X-axis; before placing the thin wall of the workpiece into the vertical positioning groove 11, the clamping seat 1 is first placed on the processing table, and the vertical wall surface of the vertical positioning groove 11 relative to the clamping plate 21 is aligned with the specified position of the processing table to ensure that the single clamping plate 21 in the vertical positioning groove 11 can align the thin wall with the standard position for processing when clamping the thin wall of the workpiece; and two clamping plates 21 are provided in the vertical clamping groove 12 to ensure that the clamping plate 21 in the vertical clamping groove 12 can always clamp the thin wall of the workpiece, thereby avoiding the situation where the single clamping plate 21 cannot clamp due to different workpiece specifications. When placing the workpiece, the thin wall of the workpiece is placed vertically into the vertical positioning groove 11. Since the vertical positioning groove 11 is used to accommodate the thin wall of the workpiece and a clamping plate 21 that can move along the X-axis is provided in the vertical positioning groove 11, and the clamping plate 21 in the vertical positioning groove 11 can press the thin wall of the workpiece against the wall surface of the vertical positioning groove 11, the vertical positioning groove 11 can play a role in pre-processing positioning and preliminary tightening of the workpiece, so that the workpiece is in a standard position during each processing, thereby ensuring the processing accuracy and processing quality of the workpiece; since the vertical clamping groove 12 Two clamping plates 21 are arranged opposite to each other in the middle, and the two clamping plates 21 can approach the thin wall of the workpiece along the X-axis to clamp the workpiece, thereby achieving the clamping and fixing of the workpiece; in addition, since at least one vertical clamping groove 12 for accommodating the thin wall of the workpiece is provided on the clamping seat 1, a workpiece with a multi-thin-wall structure can be placed in the clamping seat 1, and the workpiece clamping device can clamp complex workpieces with multi-thin-wall structures, which solves the problem that traditional single-thin-wall clamping devices cannot effectively clamp multi-thin-wall workpieces, and expands the application scope of the workpiece clamping device.

[0039] The vertical clamping unit 3 includes an abutment component 31, which is arranged on the clamping seat 1 in an adjustable height, and the abutment component 31 can abut against the upper end surface of the thin wall of the workpiece in the vertical direction. In this embodiment, a plurality of vertical clamping units 3 are provided. When the thin wall of the workpiece is placed in the vertical positioning groove 11 and the vertical clamping groove 12, the abutment component 31 can abut against the upper end surface of the thin wall of the workpiece in the vertical direction downward, so that the thin wall of the workpiece is pressed downward against the clamping seat 1. Therefore, the vertical clamping unit 3 can clamp and fix the workpiece vertically, effectively preventing the workpiece from vibrating or deviating up and down during processing, and further improving the stability of the workpiece clamping; and because the abutment component 31 is arranged on the clamping seat 1 in an adjustable height, the vertical clamping unit 3 can be suitable for workpieces of different sizes; specifically, a plurality of vertical clamping units 3 ( Figure 1 and Figure 2 In order to make the structure clear, only two vertical clamping units 3 are drawn, and more than one can be provided according to the actual situation. The multiple vertical clamping units 3 can respectively perform uniform vertical positioning and pressing on the thin walls in the vertical positioning groove 11 and the vertical clamping groove 12.

[0040] Furthermore, if Figure 2 and Figure 3 As shown, the bottom surface of the vertical positioning groove 11 and the bottom surface of the vertical clamping groove 12 are both provided with a first slide groove 13 along the X-axis direction, and the clamping plate 21 is provided with a convex portion 211 matching the first slide groove 13, and the convex portion 211 is arranged in the first slide groove 13 and slidably cooperates with the first slide groove 13. Specifically, the bottom surface of the vertical positioning groove 11 and the bottom surface of the vertical clamping groove 12 are both provided with a first slide groove 13 along the X-axis direction, and the cross section of the first slide groove 13 is rectangular, and the bottom of the clamping plate 21 is provided with a convex portion 211 matching the cross-sectional shape of the first slide groove 13, and the convex portion 211 extends into the first slide groove 13 and can slidably cooperate with the first slide groove 13; therefore, when the clamping plate 21 moves along the X-axis, the convex portion 211 can ensure the stability of the movement of the clamping plate 21 and avoid deflection during the clamping process.

[0041] Furthermore, if Figures 1 to 3As shown, the horizontal clamping unit 2 also includes a clamping transmission assembly 22, which includes a worm 221, a gear 222 and a connecting mechanism 223. The worm 221 is arranged on the clamping seat 1, and the gear 222 is meshed with the gear 222. One end of the connecting mechanism 223 is connected to the gear 222, and the other end of the connecting mechanism 223 is connected to the clamping plate 21. The rotation of the worm 221 can drive the gear 222 to move along the X-axis, so that the connecting mechanism 223 drives the clamping plate 21 to move along the X-axis. Specifically, the clamping transmission assembly 22 includes a meshing gear 222 and a worm 221, and also includes a connecting mechanism 223 connected to the gear 222. The gear 222 and the worm 221 are meshed and transmitted, which is a common turbine worm structure in the field, and its principle and specific structure are not repeated here; the worm 221 is arranged on the clamping seat 1, and the position of the worm 221 on the clamping seat 1 remains unchanged when the worm 221 rotates; when the worm 221 rotates, it can drive the gear 222 meshing with it to move along the X-axis direction. Since the connecting mechanism 223 is connected to the gear 222, when the gear 222 moves along the X-axis, the connecting mechanism 223 will also move along the X-axis accordingly under the drive of the gear 222, and further drive the clamping plate 21 to move along the X-axis; the gear 222 and the worm 221 are transmission devices commonly used in the field, with a simple structure and easy operation. In this embodiment, the clamping plate 21 located in the vertical clamping groove 12 at the end and close to the outer wall of the clamping seat 1 can also be driven by a screw to move along the X-axis. The screw is threadedly matched with the outer wall of the clamping seat 1. A bearing is provided on the clamping plate 21. The end of the screw is matched with the inner ring of the bearing. The outer ring of the bearing is embedded in the clamping plate 21 and thus matched with the clamping plate 21. Therefore, when the screw is rotated, the screw can drive the clamping plate 21 close to the outer wall of the clamping seat 1 to move along the X-axis straight line through the bearing. Movement; the design of the structure here is simple, which greatly saves the space on the side wall of the clamping seat 1; specifically, the gear 222 specifically adopts a bevel gear, the gear teeth of the bevel gear are meshed with the worm 221, and the axis of the bevel gear is at an angle with the vertical direction, that is, the bevel gear is inclined, and the two adjacent groups of clamping transmission assemblies 22 can be separated and arranged up and down, which can greatly save the space occupied by the clamping transmission assembly 22, avoid interference between the two adjacent gears 222, and effectively save space.

[0042] Specifically, Figure 3 and Figure 4As shown, a plurality of connecting shafts 212 are evenly arranged on the clamping plate 21, and the plurality of connecting shafts 212 are all connected to the connecting mechanism 223. In this embodiment, the connecting mechanism 223 includes a connecting plate 2231, an actuating block 2232 and an inner plate 2233. The connecting plate 2231 is a fan-shaped structure, and the end with a larger area on the connecting plate 2231 is connected to the gear 222, and the end with a smaller area on the connecting plate 2231 is fixedly connected to the actuating block 2232. The fan-shaped structure can reduce the volume of the connecting plate 2231, thereby saving space; the actuating block 2232 is a rectangular block structure, and the actuating block 2232 is fixedly connected to the connecting plate 2231, and the connecting plate 2231 can drive the actuating block 2233 to move. 2 moves along the X-axis, the inner plate 2233 is fixedly arranged on the actuating block 2232, the cross-sectional area of ​​the inner plate 2233 perpendicular to the X-axis direction is larger than the cross-sectional area of ​​the actuating block 2232 perpendicular to the X-axis direction, and the clamping plate 21 is connected to the inner plate 2233 through a plurality of connecting shafts 212, and the plurality of connecting shafts 212 are evenly arranged on the clamping plate 21, so that the clamping plate 21 and the inner plate 2233 can be stably connected, and at the same time, the uniformity and consistency of the force at various locations on the clamping plate 21 are ensured, so as to prevent the clamping plate 21 from damaging the workpiece due to stress concentration when clamping the thin wall of the workpiece.

[0043] Specifically, Figures 1 to 3 As shown, the horizontal clamping unit 2 further includes a crank 23, which is disposed on the worm 221. In this embodiment, the end of the worm 221 is provided with a crank 23 for manual rotation, so that the operator can rotate the worm 221 conveniently.

[0044] Specifically, the clamping transmission assembly 22 also includes a limiting shaft and a bearing. The limiting shaft is inserted into the gear 222 and connected to the gear 222 by a key. The bearing is sleeved on the limiting shaft. The limiting shaft cooperates with the inner ring of the bearing, and the outer ring of the bearing cooperates with the connecting mechanism 223. A second slide groove is provided on the clamping seat 1 along the X-axis direction. The end of the limiting shaft extends into the second slide groove and slides with the second slide groove. In this embodiment, the limiting shaft is inserted into the gear 222 and connected to the gear 222 by a key. Therefore, when the gear 222 rotates, it can drive the limiting shaft to rotate. The bearing is sleeved on the limiting shaft. The inner ring of the bearing is interference fit with the limiting shaft, and the outer ring of the bearing is interference fit with the connecting plate 2231 in the connecting mechanism 223. That is, when the gear 222 rotates and moves along the X-axis under the drive of the worm 221, the bearing can prevent the rotation of the gear 222 from affecting the connecting mechanism 223, and can effectively transmit the linear movement of the gear 222 along the X-axis to the connecting mechanism 223. A second slide groove is opened on the inner wall of the clamping seat 1, and the end of the limiting shaft extends into the second slide groove and slides with the second slide groove, so that the gear 222 and the connecting mechanism 223 can remain stable during the movement along the X-axis; at the same time, a compression spring is also sleeved on the limiting shaft, one end of the compression spring abuts against the inner wall of the clamping seat 1, and the other end of the compression spring abuts against the end of the inner ring of the bearing, thereby limiting the vertical position of the bearing and the gear 222, preventing the gear 222 from disengaging from the worm 221 during operation, and improving the reliability of the workpiece clamping device.

[0045] Furthermore, if Figure 2As shown, the vertical clamping unit 3 further includes a first mounting shaft 32 and a rotating block 33. The first mounting shaft 32 is connected to the clamping seat 1. The rotating block 33 is rotatably arranged on the first mounting shaft 32. The abutment assembly 31 is height-adjustably arranged on the rotating block 33. In this embodiment, the abutment assembly 31 includes a pressure rod and a buffer pad arranged at the bottom end of the pressure rod. The buffer pad can be made of rubber or high-density sponge. The pressure rod abuts against the thin wall of the workpiece through the buffer pad to prevent hard contact with the thin wall and damage to the thin wall. At the same time, the buffer pad can also absorb vibration, thereby improving the accuracy and efficiency of workpiece processing. One end of the rotating block 33 is mounted on the first mounting shaft 32 through a bearing sleeve, so that the rotating block 33 can rotate relative to the first mounting shaft 32; the rotating block 33 has a first motor and a second motor built in, and a first fixed gear is arranged on the end where the first mounting shaft 32 and the rotating block 33 are connected, and a planetary gear is arranged on the output end of the first motor, and the planetary gear is meshed with the first fixed gear. When the first motor is started, the planetary gear rotates around the first fixed gear on the first mounting shaft 32 under the drive of the output end of the first motor, thereby driving the rotating block 33 to rotate on the first mounting shaft 32; a vertical rack is arranged on the pressure rod, and a second fixed gear is arranged on the output end of the second motor, and the second fixed gear is meshed with the rack on the pressure rod. When the second motor is started, the second fixed gear can drive the rack to move vertically, thereby driving the pressure rod to move up and down relative to the rotating block 33, thereby realizing the height adjustment of the abutment assembly 31.

[0046] Specifically, Figure 2As shown, the vertical clamping unit 3 also includes a second mounting shaft 34, which is arranged on the clamping seat 1, and the first mounting shaft 32 is movably inserted into the second mounting shaft 34, and positioning pin holes 321 are provided on the first mounting shaft 32 and the second mounting shaft 34 along the height direction. In this embodiment, the second mounting shaft 34 is a hollow cylindrical structure, and a positioning pin hole 321 is provided on its side wall. The first mounting shaft 32 is inserted into the second mounting shaft 34 and can move up and down in the second mounting shaft 34; a positioning pin hole 321 is also provided on the side wall of the first mounting shaft 32, and a fixing pin is inserted into the positioning pin hole 321 of the first mounting shaft 32 and the second mounting shaft 34 to fix the two; when a workpiece with a larger size needs to be vertically pressed against a thin wall after replacing it, the operator can first pull out the fixing pin, and then pull up the first mounting shaft 32 to a suitable position, and then insert the fixing pin into the second mounting shaft 34 and The second motor is then started to fine-tune the height of the abutment assembly 31 so that it can be pressed against the thin wall accurately. When a workpiece with a smaller size needs to be pressed against the thin wall vertically after replacing it, the operator first pulls out the fixing pin and presses the first installation shaft 32 downward to a suitable position, and then inserts the fixing pin into the second installation shaft 34 and the positioning pin hole 321 in the first installation shaft 32 in sequence, so that the height of the first installation shaft 32 is fixed, and then the second motor is started to fine-tune the height of the abutment assembly 31 so that it can be pressed against the thin wall accurately. By setting the second installation shaft 34 and the positioning pin hole 321, the operator can quickly adjust the height of the abutment assembly 31, thereby improving work efficiency.

[0047] Furthermore, if Figure 1 and Figure 2 As shown, a fixing ear plate 14 is provided on the clamping seat 1. Specifically, a plurality of fixing ear plates 14 are provided at the bottom of the clamping seat 1, and bolt through holes are provided on the fixing ear plates 14. The operator can use bolts to fix the fixing ear plates 14 to the processing table, thereby improving the stability of the workpiece clamping device during processing and facilitating disassembly.

[0048] This embodiment also provides a workpiece clamping method, using the above-mentioned workpiece clamping device, comprising the following steps:

[0049] S1. Fix the clamping seat 1 at the designated position of the processing table. Specifically, the operator uses bolts to fix the clamping seat 1 at the designated position on the processing table, and the vertical wall surface of the vertical positioning groove 11 and the clamping plate 21 relative to the designated position of the processing table is aligned with the designated position of the processing table, so as to ensure that the single clamping plate 21 in the vertical positioning groove 11 aligns the thin wall of the workpiece with the standard position for processing when clamping the thin wall of the workpiece, thereby improving the processing quality of the workpiece.

[0050] S2. Place one of the thin walls of the workpiece into the vertical positioning groove 11, and place the remaining thin walls of the workpiece into at least one vertical clamping groove 12, and use the clamping plate 21 in the vertical positioning groove 11 to press the thin wall of the workpiece against the wall surface of the vertical positioning groove 11. Specifically, the operator places one of the thin walls of the workpiece into the vertical positioning groove 11, and correspondingly places the remaining thin walls into the vertical clamping groove 12, thereby completing the placement of the workpiece; then the operator uses the clamping plate 21 to press the thin wall in the vertical positioning groove 11 against the wall surface.

[0051] S3. Clamp the thin wall of the workpiece using the clamping plate 21 in the vertical clamping groove 12. Specifically, the operator clamps the thin wall in the vertical clamping groove 12 using the clamping plate 21, thereby completing the clamping and fixing of the workpiece in the horizontal direction.

[0052] S4. Adjust the height of the abutment assembly 31 according to the size of the thin wall of the workpiece, and use the abutment assembly 31 to abut against the upper end surface of the thin wall of the workpiece. Specifically, the operator adjusts the height of the abutment assembly 31 and makes the abutment assembly 31 abut against the thin wall vertically downward, thereby completing the final clamping and fixing of the workpiece.

[0053] When using this workpiece clamping method, first, the thin wall of a special-shaped or complex workpiece with multiple thin walls is placed in the vertical positioning groove 11 for positioning and pre-tightening, so that the workpiece is fixed at a predetermined position on the processing table, ensuring that the workpiece can be at the same standard during each processing; then, the thin wall in the vertical clamping groove 12 is horizontally clamped and fixed by the clamping plate, and then the vertical clamping unit 3 is used to vertically clamp and fix the thin wall, thereby fixing the workpiece and improving the stability of the workpiece during processing.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A workpiece clamping device, characterized in that: include: A clamping seat (1), wherein a vertical positioning groove (11) and at least one vertical clamping groove (12) are formed on the clamping seat (1), wherein the vertical positioning groove (11) and the at least one vertical clamping groove (12) are both used to accommodate a thin wall of a workpiece; A horizontal clamping unit (2), the horizontal clamping unit (2) comprising clamping plates (21) arranged in the vertical positioning groove (11) and the vertical clamping groove (12), one clamping plate (21) being arranged in the vertical positioning groove (11), and two clamping plates (21) being arranged opposite to each other in the vertical clamping groove (12), the clamping plate (21) in the vertical positioning groove (11) being able to approach the thin wall of the workpiece along the X-axis so as to press the thin wall of the workpiece against the wall surface of the vertical positioning groove (11); the two clamping plates (21) in the vertical clamping groove (12) being able to approach each other along the X-axis so as to press against two sides of the thin wall of the workpiece and clamp the thin wall of the workpiece respectively; A vertical clamping unit (3), the vertical clamping unit (3) comprising an abutment assembly (31), the abutment assembly (31) being arranged on the clamping seat (1) in an adjustable manner in height, and the abutment assembly (31) being able to abut against the upper end surface of the thin wall of the workpiece in a vertical direction.

2. The workpiece clamping device according to claim 1, characterized in that: A first sliding groove (13) is provided on the bottom surface of the vertical positioning groove (11) and the bottom surface of the vertical clamping groove (12) along the X-axis direction, and a convex portion (211) matching the first sliding groove (13) is provided on the clamping plate (21), and the convex portion (211) is arranged in the first sliding groove (13) and slidably cooperates with the first sliding groove (13).

3. The workpiece clamping device according to claim 1, characterized in that: The horizontal clamping unit (2) further comprises a clamping transmission assembly (22), the clamping transmission assembly (22) comprising a worm (221), a gear (222) and a connecting mechanism (223), the worm (221) being arranged on the clamping seat (1), the gear (222) being meshed with the gear (222), one end of the connecting mechanism (223) being connected to the gear (222), and the other end of the connecting mechanism (223) being connected to the clamping plate (21), the rotation of the worm (221) being able to drive the gear (222) to move along the X-axis, so that the connecting mechanism (223) drives the clamping plate (21) to move along the X-axis.

4. The workpiece clamping device according to claim 3, characterized in that: A plurality of connecting shafts (212) are evenly arranged on the clamping plate (21), and the plurality of connecting shafts (212) are all connected to the connecting mechanism (223).

5. The workpiece clamping device according to claim 3, characterized in that: The horizontal clamping unit (2) further comprises a crank handle (23), wherein the crank handle (23) is arranged on the worm (221).

6. The workpiece clamping device according to claim 3, characterized in that: The clamping transmission assembly (22) also includes a limit shaft and a bearing, wherein the limit shaft is inserted into the gear (222) and is key-connected to the gear (222), and the bearing is sleeved on the limit shaft, the limit shaft cooperates with the inner ring of the bearing, and the outer ring of the bearing cooperates with the connecting mechanism (223); a second sliding groove is opened on the clamping seat (1) along the X-axis direction, and the end of the limit shaft extends into the second sliding groove and slidably cooperates with the second sliding groove.

7. The workpiece clamping device according to claim 1, characterized in that: The vertical clamping unit (3) further comprises a first mounting shaft (32) and a rotating block (33); the first mounting shaft (32) is connected to the clamping seat (1); the rotating block (33) is rotatably arranged on the first mounting shaft (32); and the abutment assembly (31) is height-adjustably arranged on the rotating block (33).

8. The workpiece clamping device according to claim 7, characterized in that: The vertical clamping unit (3) further comprises a second mounting shaft (34), wherein the second mounting shaft (34) is arranged on the clamping seat (1), the first mounting shaft (32) is movably inserted into the second mounting shaft (34), and positioning pin holes (321) are provided on the first mounting shaft (32) and the second mounting shaft (34) along the height direction.

9. The workpiece clamping device according to claim 1, characterized in that: The clamping seat (1) is provided with a fixing ear plate (14).

10. A workpiece clamping method, characterized in that: Using the workpiece clamping device according to any one of claims 1 to 9 comprises the following steps: S1, fixing the clamping seat (1) at a designated position on the processing table; S2, placing one of the thin walls of the workpiece into the vertical positioning groove (11), and placing the remaining thin walls of the workpiece into at least one of the vertical clamping grooves (12), and using the clamping plate (21) in the vertical positioning groove (11) to press the thin wall of the workpiece against the wall surface of the vertical positioning groove (11); S3, using the clamping plate (21) in the vertical clamping groove (12) to clamp the thin wall of the workpiece; S4. Adjust the height of the abutment component (31) according to the size of the thin wall of the workpiece, and use the abutment component (31) to abut against the upper end surface of the thin wall of the workpiece.

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