Multi-station clamping device for water-cooled joint

Abstract

The utility model discloses a multi-station clamping device for a water-cooled joint, which relates to the technical field of milling of the water-cooled joint and comprises a support capable of being fixed on a CNC (computerized numerical control) machining center workbench, at least one group of clamping structures are arranged on the support, and cushion blocks are arranged on two opposite sides of the clamping structures; the clamping structure comprises two pressing blocks which can be close to or away from the two cushion blocks respectively, the clamping faces of the pressing blocks are matched with the clamped faces of the workpieces, and positioning blocks for limiting the workpieces to move in the Y-axis direction are further installed between the pressing blocks and the cushion blocks. The support is further provided with an automatic driving assembly capable of driving the two pressing blocks in the clamping structure. According to the numerical control machining center, a plurality of workpieces can be clamped and machined at the same time, the tool changing frequency of the CNC machining center is reduced, the workpieces only need to be manually placed right in the workpiece clamping process, the clamping efficiency is high, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of milling technology for water-cooled connectors, and more specifically, to a multi-station clamping device for water-cooled connectors. Background Technology

[0002] The existing milling process for water-cooled connectors uses a vise clamping method. Therefore, only one workpiece can be clamped at a time during the machining process, and manual clamping is required. This means that the locking bolts for each workpiece must be tightened and loosened manually during the clamping process, resulting in low clamping efficiency. At the same time, since only one workpiece can be clamped and processed at a time, the CNC machining center has a high tool change frequency, resulting in low machining efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-station clamping device for water-cooled connectors, which can clamp and process multiple workpieces simultaneously, reduce the tool change frequency of CNC machining centers, and only requires manual alignment of the workpiece during the clamping process, resulting in high clamping efficiency and greatly improving processing efficiency.

[0004] To achieve the purpose of this utility model, the technical solution adopted is as follows: a multi-station clamping device for a water-cooled connector, including a bracket that can be fixed on the worktable of a CNC machining center, and the bracket has at least one set of clamping structures, and pads are provided on both opposite sides of the clamping structures; the clamping structure includes two pressure blocks that can move closer to or further away from the two pads respectively, the clamping surface of the pressure block cooperates with the clamped surface of the workpiece, and a positioning block that restricts the movement of the workpiece along the Y-axis is also installed between the pressure block and the pads; the bracket is also equipped with an automatic drive component that can drive the two pressure blocks in the clamping structure.

[0005] Furthermore, the automatic drive assembly includes a telescopic element mounted on the bracket and a clamp mounted on the output end of the telescopic element, and the two pressure blocks in the clamping structure are respectively mounted on the two jaws of the clamp.

[0006] Furthermore, the fixture is an OK fixture.

[0007] Furthermore, the clamping surface of the pressure block engages with the clamped surface of the workpiece.

[0008] Furthermore, fixing blocks are installed on opposite sides of the clamping structure, and each fixing block has a clamping structure that abuts against the side of the workpiece. The two clamping structures cooperate with the two positioning blocks one by one.

[0009] Furthermore, the clamping structure includes a screw that horizontally penetrates the fixing block, a spring pressure block at the end of the screw near the workpiece, an adjusting nut at the end of the screw away from the workpiece, and a compression spring sleeved on the screw, with both ends of the compression spring clamping against the fixing block and the spring pressure block respectively.

[0010] Furthermore, the bracket also has a positioning pin that cooperates with the fixing block.

[0011] Furthermore, the fixing block also has limiting stops that restrict the two ends of the pressure block.

[0012] Furthermore, the upper surface of the bracket also has height-equalizing pads to elevate the workpiece.

[0013] Furthermore, the bracket includes a base plate that can be fixed to the CNC machining center worktable, and multiple columns are also installed on the base plate. A large plate is installed on the multiple columns, and a clamping structure is installed on the large plate.

[0014] Furthermore, the upper surface of the large plate also has at least two raised baffles, and the clamping structure is located between two adjacent baffles.

[0015] The beneficial effects of this utility model are:

[0016] This invention enables automatic clamping and loosening of workpieces, greatly reducing the labor intensity of workers, avoiding manual repetitive tightening and loosening of bolts, and improving clamping efficiency. At the same time, this invention can automatically clamp multiple workpieces at once, avoiding frequent tool changes in CNC machining centers and greatly improving machining efficiency. Attached Figure Description

[0017] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0018] Figure 1 This is a structural diagram of the multi-station clamping device for water-cooled connectors provided by this utility model;

[0019] Figure 2 This is a top view of the multi-station clamping device for water-cooled connectors provided by this utility model;

[0020] Figure 3 This is a side view of the multi-station clamping device for water-cooled connectors provided by this utility model;

[0021] Figure 4 This is a structural diagram of the water-cooled connector;

[0022] Figure 5 This is the clamping state of the water-cooled connector. Figure 1 ;

[0023] Figure 6 This is the clamping state of the water-cooled connector. Figure 2 .

[0024] The attached diagram shows the markings and corresponding component names:

[0025] 1. Base plate, 2. Column, 3. Large plate, 4. Pad, 5. Positioning block, 6. Pressure block, 7. Fixing block, 8. Positioning pin, 9. Spring pressure block, 10. Screw, 11. Adjusting nut, 12. Compression spring, 13. Clamp, 14. Equal height pad, 15. Washer, 16. Telescopic element;

[0026] 31. Retaining strip;

[0027] 71. Limit stop. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0029] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 3 As shown, the present invention provides a multi-station clamping device for a water-cooled connector, including a bracket. The bracket includes a base plate 1 that can be fixed on a CNC machining center workbench. Multiple columns 2 are bolted to the base plate 1. The multiple columns 2 are evenly arranged on the base plate 1. A large plate 3 is bolted to the upper end of the multiple columns 2. The length and width of the large plate 3 may or may not be the same as the length and width of the base plate 1. The upper surface of the large plate 3 has multiple raised baffles 31. The axial direction of the baffles 31 is consistent with the length direction or the width direction of the large plate 3. The multiple baffles 31 are evenly spaced on the large plate 3, and an installation groove is formed between two adjacent baffles 31. In order to avoid wasting space on the large plate 3, the baffles 31 located at both ends or both sides of the large plate 3 can be flush with the side of the large plate 3, and the two ends of the baffles 31 can also be flush with the side of the large plate 3.

[0031] Multiple clamping structures are installed on the large plate 3. Specifically, the clamping structure between two adjacent baffles 31 can be one set, two sets, or even more. When there are multiple clamping structures between two adjacent baffles 31, the multiple clamping structures between two adjacent baffles 31 are arranged at intervals along the length of the mounting groove.

[0032] The clamping structure includes pads 4 located inside the two retaining bars 31. The pads 4 are mounted on the large plate 3 and first undergo heat treatment to increase their hardness. Then, mounting holes are opened on the large plate 3. The mounting holes are oblong holes, and the end face of the pads 4 has the same shape as the oblong holes. After cooling, the pads 4 are forcibly inserted into the mounting holes. In this utility model, when the water-cooled connector needs to be clamped, one side of the water-cooled connector abuts against the side of the pads 4 for X-axis positioning of the workpiece.

[0033] The clamping structure also includes two pressure blocks 6, each corresponding to one of the two pads 4. The pressure blocks 6 can move closer to or further away from each other. When the pressure blocks 6 move closer, they move away from the pads 4, increasing the distance between them. Conversely, when they move further away, they move closer to the pads 4, also increasing the distance between them. This movement of the pressure blocks 6 allows them to move closer to or further away from the pads 4, forming a set of grippers. When a water-cooled connector is placed between the pressure blocks 6 and the pads 4, it is clamped. To ensure better clamping of the water-cooled connector when the pressure blocks 6 and pads 4 are engaged, the clamping surface of the pressure blocks 6 mates with the clamped surface of the water-cooled connector.

[0034] To prevent the water-cooling connector from shifting in the Y direction when it is clamped by the pressure block 6 and the pad 4, the clamping structure also includes a positioning block 5 for limiting the displacement of the water-cooling connector in the Y direction. The positioning block 5 can be installed in the same way as the pad 4. When the water-cooling connector is clamped by the pressure block 6 and the pad 4, the side of the water-cooling connector is pressed against the positioning block 5, so that the water-cooling connector can be restricted from shifting in the Y direction by the positioning block 5.

[0035] To ensure the movement of the pressure block 6 in the clamping structure, the large plate 3 is also equipped with an automatic drive component that can simultaneously drive the two pressure blocks 6 in the clamping structure to move closer or further apart. The automatic drive component can drive the two pressure blocks 6 in the clamping structure without tightening or loosening bolts, making the clamping efficiency of the water-cooled connector higher and effectively reducing the labor intensity of the workers.

[0036] The automatic drive assembly of this utility model includes a telescopic element 16 and a clamp 13. The telescopic element 16 is fixedly mounted on the lower surface of the large plate 3 by bolts, and the end face of the telescopic element 16 is pressed against the lower surface of the large plate 3 by a washer 15. The output end of the telescopic element 16 extends upward through the large plate 3. The clamp 13 is mounted on the output end of the telescopic element 16. Two pressure blocks 6 in the clamping structure are respectively mounted on the two jaws of the clamp 13. The telescopic element 16 drives the two jaws to move closer or further away, causing the two pressure blocks 6 mounted on the jaws to move closer or further away, thereby changing the distance between the pressure blocks 6 and the pad 4. When the water-cooled connector is placed between the pressure blocks 6 and the pad 4, the movement of the pressure blocks 6 realizes the clamping or loosening of the water-cooled connector, making the clamping and loosening of the water-cooled connector more convenient. At the same time, one telescopic element 16 can clamp two water-cooled connectors at the same time, thereby minimizing the volume of the clamping device and making the area occupied by the clamping device on the CNC machining center worktable smaller.

[0037] In this invention, considering only the two pressure blocks 6 being close to or far from each other, the automatic drive assembly can also use a parallel gripper cylinder. In this case, the two pressure blocks 6 in the clamping structure can be respectively installed on the two grippers of the parallel gripper cylinder, which can also drive the pressure blocks 6. Of course, in order to satisfy the simultaneous driving of the two pressure blocks 6, the automatic drive assembly can also use other drive structures instead.

[0038] In this utility model, the telescopic element 16 can be directly selected as a cylinder, and the clamp 13 can be directly selected as an OK clamp. The OK clamp is a direct use of existing technology. The OK clamp is a wedge-shaped slider mechanism with a dovetail groove, which can convert the up-and-down movement of the telescopic element 16 into horizontal pushing. At this time, the output end of the cylinder is connected to the pressure block 6 in the OK clamp. The two pressure blocks 6 are respectively installed on the two push blocks in the OK clamp. The telescopic element 16 drives the pressure block 6 in the OK clamp to move up and down. The up-and-down movement of the pressure block 6 in the OK clamp causes the two push blocks in the OK clamp to move closer or further away from each other, thereby making the two pressure blocks 6 in the clamping structure move closer or further away from each other, making the driving of the pressure block 6 faster and more direct.

[0039] In this invention, to improve the clamping effect of the pressure block 6 and the pad 4 on the water-cooled connector, a groove is provided on the clamping surface of the pressure block 6 to mate with the surface of the water-cooled connector. When the water-cooled connector needs to be clamped, the protrusion on the clamped surface of the water-cooled connector can be engaged in the groove on the pressure block 6. This increases the contact area between the clamping surface of the pressure block 6 and the clamped surface of the water-cooled connector when the pressure block 6 and the pad 4 are clamping the water-cooled connector, preventing the clamping force on the water-cooled connector from being concentrated on the protrusion on the clamped surface of the water-cooled connector, thus preventing damage to the water-cooled connector during clamping. At the same time, the engagement of the protrusion on the clamped surface of the water-cooled connector with the groove on the clamping surface of the pressure block 6 also allows the water-cooled connector to be confined in the Y direction after being clamped, preventing displacement of the water-cooled connector in the Y direction during subsequent processing.

[0040] To further limit the displacement of the water-cooled connector in the Y direction during processing, fixing blocks 7 are installed on opposite sides of the clamping structure. The fixing blocks 7 are L-shaped, and one end of each fixing block 7 is on the same straight line as the clamp 13. The other ends of the two fixing blocks 7 extend toward the two pads 4 respectively. The extended ends of the two fixing blocks 7 are equipped with a clamping structure, which extends toward the gap between the pressure block 6 and the pad 4. The clamping structure and the positioning block 5 on the same side of the clamp 13 respectively limit the two sides of the water-cooled connector to be clamped. That is, after the water-cooled connector to be clamped is placed between the pressure block 6 and the pad 4, the pressure block 6, the pad 4, the clamping structure, and the positioning block 5 respectively restrict the water-cooled connector in four directions, so that the water-cooled connector cannot be displaced in the X and Y directions after clamping, making the clamping of the water-cooled connector more stable.

[0041] The clamping structure of this utility model includes a screw 10 that horizontally penetrates the fixed block 7. The screw 10 can reciprocate on the fixed block 7, and its inner end extends toward the positioning block 5 located on the same side of the clamp 13. A spring pressure block 9 is fixed to one end of the screw 10 extending toward the positioning block 5, and an adjusting nut 11 is installed on the outer end of the screw 10. Through the cooperation of the spring pressure block 9 and the adjusting nut 11, the screw 10 will not detach from the fixed block 7 during its movement on the fixed block 7. A compression spring 12 is also sleeved on the screw 10. One end of the compression spring 12 is pressed against the fixed block 7, and the other end of the compression spring 12 is pressed against the spring pressure block 9. The spring force of the compression spring 12 pushes the spring pressure block 9 and the screw 10 toward the positioning block 5 located on the same side of the clamp 13, thereby pressing the water-cooled connector placed between the pressure block 6 and the pad block 4 against the positioning block 5 and the spring pressure block 9, thus achieving positioning of the water-cooled connector in the Y direction. To ensure that the compression spring 12 has sufficient elastic force to push the spring block 9, the operator can adjust the adjusting nut 11 on the screw 10 to change the distance between the adjusting nut 11 and the spring block 9, thereby adjusting the degree of compression of the compression spring 12.

[0042] In order to ensure the installation accuracy of the fixing block 7 during installation, the fixing block 7 is provided with positioning holes, and the large plate 3 has positioning pins 8 that cooperate with the positioning holes. Through the cooperation of positioning pins 8 and positioning holes on the fixing block 7, the fixing block 7 can be quickly positioned during installation, thus ensuring the installation accuracy of the fixing block 7.

[0043] To ensure that the pressure blocks 6 move in the Y direction during the movement of the OK clamp, the fixing block 7 can also be designed with two limiting stops 71 on both sides. After the pressure blocks 6 are installed on the push block of the OK clamp, the two sides of the pressure blocks 6 can be restricted by the two limiting stops 71 on the same side of the fixing block, thereby preventing the pressure blocks 6 from moving in the Y direction and ensuring the stability of the pressure blocks 6.

[0044] In this utility model, in order to elevate the water-cooled connector during the clamping process, the upper surface of the large plate 3 is also provided with equal height blocks 14 for elevating the water-cooled connector. At the same time, there are multiple equal height blocks 14 corresponding to one water-cooled connector. The multiple equal height blocks 14 are of the same height and are located between the pad block 4 and the pressure block 6. However, it should be noted that the position of the equal height blocks 14 must be designed to ensure that the position of the equal height blocks 14 will not affect the movement of the pressure block 6.

[0045] like Figures 4 to 6 As shown, in this utility model, when it is necessary to clamp the water-cooled connector, the screw 10 is pulled to move outward of the fixing block 7. While the screw 10 is pulled, the spring 12 is compressed, and the spring block 9 moves synchronously with the screw 10, so that the distance between the spring block 9 and the positioning block 5 located on the same side of the OK clamp is maximized. Then, the water-cooled connector is placed between the pressure block 6 and the pad block 4, and the pull on the screw 10 is released. After the pull rod loses its tension, the compression spring 12 pushes the spring block 9 towards the water-cooled connector through its own elasticity, and pushes the water-cooled connector to abut against the positioning block 5, so that the water-cooled connector is restricted between the positioning block 5 and the spring block 9. The cylinder retracts, and the cylinder drives the pressure block 6 in the OK clamp to move downward. While the pressure block 6 in the OK clamp moves downward, it pushes the push block in the OK clamp to move towards the pad. While the push block in the OK clamp moves, it drives the pressure block 6 to move synchronously, so that the water-cooled connector is finally clamped between the pressure block 6 and the pad block 4.

[0046] After the water-cooled connector is processed, the cylinder extends, driving the pressure block 6 in the OK fixture to move upward. As the pressure block 6 moves upward, it also drives the two push blocks in the OK fixture to move closer to each other. The push blocks in the OK fixture move synchronously, driving the pressure block 6 to move away from the water-cooled connector. Next, the screw 10 is pulled to move outward from the fixing block 7. As the screw 10 is pulled, the spring 12 is compressed. The spring pressure block 9 moves synchronously with the screw 10, maximizing the distance between the spring pressure block 9 and the positioning block 5 located on the same side of the OK fixture. Finally, the water-cooled connector can be removed.

[0047] In this utility model, since the pad 4 is not used to elevate the water-cooled connector during the clamping process, but only to provide a tight fit for the water-cooled connector and prevent displacement in the X direction, when the large plate 3 has a baffle 31, the baffle 31 can be used directly to replace the pad 4, so that the side of the baffle 31 can also prevent the water-cooled connector from displacing in the X direction during clamping.

[0048] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A multi-station clamping device for a water-cooled connector, characterized in that, The device includes a bracket that can be fixed on the worktable of a CNC machining center, and the bracket has at least one set of clamping structures, with pads (4) provided on both sides of the clamping structures; the clamping structures include two pressure blocks (6) that can move closer to or further away from the two pads (4), the clamping surface of the pressure blocks (6) cooperates with the clamped surface of the workpiece, and a positioning block (5) that restricts the movement of the workpiece along the Y-axis is also installed between the pressure blocks (6) and the pads (4); the bracket is also equipped with an automatic drive assembly that can drive the two pressure blocks (6) in the clamping structure.

2. The multi-station clamping device for water-cooled joints according to claim 1, characterized in that, The automatic drive assembly includes a telescopic element (16) mounted on a bracket and a clamp (13) mounted on the output end of the telescopic element (16), and two pressure blocks (6) in the clamping structure are respectively mounted on the two jaws of the clamp (13).

3. The multi-station clamping device for water-cooled joints according to claim 2, characterized in that, The clamp (13) is an OK clamp.

4. The multi-station clamping device for water-cooled joints according to claim 1 or 2, characterized in that, The clamping surface of the pressure block (6) engages with the clamped surface of the workpiece.

5. The multi-station clamping device for water-cooled joints according to claim 1 or 2, characterized in that, The clamping structure is also equipped with fixing blocks (7) on both sides, and each of the two fixing blocks (7) has a clamping structure that abuts against the side of the workpiece. The two clamping structures cooperate with the two positioning blocks (5) one by one.

6. The multi-station clamping device for water-cooled joints according to claim 5, characterized in that, The clamping structure includes a screw (10) that passes horizontally through the fixed block (7). The end of the screw (10) near the workpiece has a spring pressure block (9), and the end of the screw (10) away from the workpiece has an adjusting nut (11). A compression spring (12) is also sleeved on the screw (10). The two ends of the compression spring (12) are clamped to the fixed block (7) and the spring pressure block (9) respectively.

7. The multi-station clamping device for water-cooled joints according to claim 5, characterized in that, The bracket also has a positioning pin (8) that cooperates with the fixing block (7).

8. The multi-station clamping device for water-cooled joints according to claim 5, characterized in that, The fixing block (7) also has limiting stops (71) that restrict the two ends of the pressure block (6).

9. The multi-station clamping device for water-cooled joints according to claim 1 or 2, characterized in that, The upper surface of the bracket also has equal-height pads (14) for raising the workpiece.

10. The multi-station clamping device for water-cooled joints according to claim 1 or 2, characterized in that, The bracket includes a base plate (1) that can be fixed on the CNC machining center workbench. Multiple columns (2) are also installed on the base plate (1). A large plate (3) is installed on the multiple columns (2), and a clamping structure is installed on the large plate (3).

11. The multi-station clamping device for water-cooled joints according to claim 10, characterized in that, The upper surface of the large plate (3) also has at least two raised baffles (31), and the clamping structure is located between two adjacent baffles (31).

Images