Pressing device

Abstract

The utility model discloses a pressing device which comprises a base, an installation frame fixedly installed on the top of the base, a base fixedly installed on the top of the base and provided with a fixing base, a first limiting groove formed in the top of the fixing base and used for containing a second workpiece, and a second limiting groove formed in the top of the fixing base and used for containing a first workpiece. The end, provided with a second through hole, of the second workpiece is embedded into the first workpiece, the first workpiece is provided with a first through hole correspondingly communicated with the second through hole, a limiting block is located in the first limiting groove and located on one side of the second workpiece, and the lower end of the limiting block is located between the second workpiece and the side wall of the first limiting groove. A plurality of guide columns are arranged between the mounting frame and the base, and the pressing plate is arranged on the circumferential outer walls of the guide columns in a sleeving mode. According to the pressing device, the position precision of the workpiece is improved while the workpiece is convenient to take and place, the situation of dislocation of the through holes is reduced, and the risk of damage to the workpiece is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment processing, in particular to a pressing device. Background Art

[0002] The surgical robot is a new type of medical device that integrates clinical medicine, biomechanics, mechanics, computer science, microelectronics and many other disciplines. Through its clear imaging system and flexible robotic arm, it assists doctors in performing complex surgical operations in a minimally invasive manner. In the prior art, in order to achieve the connection between two workpieces of the surgical robot, a pin is pressed into the through holes of the two workpieces through a pressing device, and the pin is interference-fitted with the through holes of the two workpieces, so that the two workpieces can be connected.

[0003] After searching, the patent publication number CN213990965U discloses "a headphone headband latch pressing device", including a frame, a pressing head that can move up and down is arranged at the upper end of the frame, and a pressing positioning mold arranged corresponding to the pressing head is installed at the lower end of the frame. The pressing positioning mold includes a lower mold and an upper mold arranged above the lower mold. The upper mold and the lower mold can be relatively rotatably connected. The upper mold is provided with a placement groove for placing the headphone headband, and the lower mold is provided with a first positioning magnet at the position directly below the pressing head. The upper mold is provided with a second positioning magnet that is magnetically matched with the first positioning magnet at the position of the headphone headband latch hole. The device can accurately position the pressing head and the latch hole, improve the quality of headband latch pressing, and at the same time improve the work efficiency of headband latch pressing.

[0004] In order to improve the positioning accuracy of the workpiece, the workpiece is generally limited and fixed. However, the gap between the limit device and the workpiece is small, which makes it difficult for personnel to align the workpiece with the limit position during the placement of the workpiece, making it inconvenient for personnel to take and place the workpiece. If the distance between the workpiece and the limit device is increased, it is easy to cause the position of the workpiece to shift, and even cause the through holes between the two workpieces to be misaligned. During the pressing process, the pin shaft cannot pass through smoothly, causing damage to the workpiece. Utility Model Content

[0005] The utility model aims to provide a pressing device, which is convenient for taking and placing workpieces, improves the position accuracy of the workpieces, reduces the misalignment of through holes, and reduces the risk of damage to the workpieces.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pressing device, used for pressing a pin into between a first workpiece and a second workpiece, comprising: a base, a mounting frame fixedly mounted on the top of the base, a pressing plate with a push rod fixedly mounted on the bottom is arranged inside the mounting frame, and a cylinder for driving the pressing plate to move up and down is arranged on the top of the mounting frame;

[0007] A base with a fixed seat is fixedly installed on the top of the base, and a first limiting groove for placing a second workpiece and a second limiting groove for placing a first workpiece are provided on the top of the fixed seat, and one end of the second workpiece having a second through hole is embedded in the first workpiece, and the first workpiece is provided with a first through hole corresponding to the second through hole;

[0008] There is a height difference between the first limiting groove and the second limiting groove. The first limiting groove located above the second limiting groove is connected to the side wall of the fixed seat. A limiting block is arranged inside the first limiting groove and on one side of the second workpiece. The lower end of the limiting block is located between the second workpiece and the side wall of the first limiting groove.

[0009] The further improved scheme in the above technical scheme is as follows:

[0010] 1. In the above solution, the limit block is in an L-shape.

[0011] 2. In the above solution, an arc groove is provided on both sides of the limit block.

[0012] 3. In the above solution, the height of the upper end surface of the limit block is greater than the height of the upper surface of the first workpiece.

[0013] 4. In the above scheme, a plurality of guide columns are arranged between the mounting frame and the base, and the pressure plate is sleeved on the circumferential outer wall of the guide column.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model pressing device realizes preliminary positioning of the first workpiece and the second workpiece by placing the first workpiece inside the second limiting groove, placing the second workpiece inside the first limiting groove, and the second through hole of the second workpiece is connected to the first through hole of the first workpiece. At this time, the limiting block is not embedded in the first limiting groove, which is convenient for personnel to take and place the workpieces. Furthermore, the limiting block is arranged inside the first limiting groove, and the lower end of the limiting block is located between the second workpiece and the side wall of the first limiting groove. After the workpiece is placed, the limiting block is embedded between the first limiting groove and the second workpiece, so that the second workpiece can be limited and fixed, and the situation that the second workpiece rotates and deviates during the pressing process so that the second through hole is misaligned with the first through hole is avoided, thereby further improving the positioning accuracy of the second workpiece and reducing the risk of damage to the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the pressing device of the utility model;

[0017] Attached Figure 2The local structure diagram of the pressing device of the utility model is shown in FIG. Figure 1 ;

[0018] Attached Figure 3 The local structure diagram of the pressing device of the utility model is shown in FIG. Figure 2 ;

[0019] Attached Figure 4 It is a structural schematic diagram of the fixing seat in the utility model;

[0020] Attached Figure 5 It is a partial structural exploded view of the pressing device of the utility model.

[0021] In the above drawings: 1000, first workpiece; 1001, first through hole; 2000, second workpiece; 2001, second through hole; 3000, pin; 100, base; 200, mounting bracket; 300, cylinder; 400, pressure plate; 500, push rod; 600, guide column; 700, limiting column; 800, fixing block; 900, connecting seat; 901, groove; 902, connecting rod; 10, base; 11, fixing seat; 12, first limiting groove; 13, second limiting groove; 14, limiting block; 15, arc groove. Implementation

[0022] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0023] Embodiment 1: A pressing device, used for pressing a pin 3000 between a first workpiece 1000 and a second workpiece 2000, comprises: a base 100, a mounting frame 200 fixedly mounted on the top of the base 100, a pressing plate 400 with a push rod 500 fixedly mounted on the bottom is arranged inside the mounting frame 200, and a cylinder 300 for driving the pressing plate 400 to move up and down is arranged on the top of the mounting frame 200;

[0024] A base 10 having a fixing seat 11 is fixedly installed on the top of the base 100, and a first limiting groove 12 for placing the second workpiece 2000 and a second limiting groove 13 for placing the first workpiece 1000 are provided on the top of the fixing seat 11. One end of the second workpiece 2000 having a second through hole 2001 is embedded in the first workpiece 1000, and the first workpiece 1000 is provided with a first through hole 1001 corresponding to the second through hole 2001.

[0025] Align the pin shaft with the first through hole and place it above the first through hole, start the cylinder to drive the pressure plate to move downward along the guide column, thereby driving the push rod at the bottom of the pressure plate to move downward, and the push rod pushes the pin shaft into between the first through hole and the second through hole, so that the first workpiece and the second workpiece can be connected through the pin shaft;

[0026] There is a height difference between the first limiting groove 12 and the second limiting groove 13. The first limiting groove 12 located above the second limiting groove 13 is connected to the side wall of the fixing seat 11. A limiting block 14 is arranged inside the first limiting groove 12 and on one side of the second workpiece 2000. The lower end of the limiting block 14 is located between the second workpiece 200 and the side wall of the first limiting groove 12.

[0027] Place the first workpiece and the second workpiece in the corresponding second limiting groove and the first limiting groove, so that the first through hole of the first workpiece is connected with the second through hole of the second workpiece, and then fix the second workpiece by the limiting block to prevent the second workpiece from rotating and deviating.

[0028] The shape of the above-mentioned limit block 14 is L-shaped; an arc-shaped groove 15 is provided on both sides of the above-mentioned limit block 14 for easy access by personnel.

[0029] The height of the upper end face of the above-mentioned limit block 14 is greater than the height of the upper surface of the above-mentioned first workpiece 1000, which can stop the pressure plate, avoid the situation where the pressure plate drops excessively and the pin shaft is disengaged from the through hole, and avoid the situation where the pressure plate is squeezed on the first workpiece and the second workpiece to cause damage to the workpieces.

[0030] A plurality of guide posts 600 are disposed between the mounting frame 200 and the base 100 , and the pressing plate 400 is sleeved on the circumferential outer wall of the guide posts 600 ; the four corners of the pressing plate 400 are sleeved with the guide posts 600 , respectively.

[0031] A limit post 700 is disposed between the two guide posts 600 on the same side, which can stop the pressure plate to prevent the pressure plate from dropping too low and causing the pin shaft to disengage from the through hole.

[0032] Embodiment 2: A pressing device, used for pressing a pin 3000 between a first workpiece 1000 and a second workpiece 2000, comprising: a base 100, a mounting frame 200 fixedly mounted on the top of the base 100, a pressing plate 400 with a push rod 500 fixedly mounted on the bottom is arranged inside the mounting frame 200, and a cylinder 300 for driving the pressing plate 400 to move up and down is arranged on the top of the mounting frame 200, a base 10 with a fixing seat 11 is fixedly mounted on the top of the base 100, a first limiting groove 12 for placing the second workpiece 2000 and a second limiting groove 13 for placing the first workpiece 1000 are provided on the top of the fixing seat 11, one end of the second workpiece 2000 having a second through hole 2001 is embedded in the interior of the first workpiece 1000, and the first workpiece 1000 is provided with a first through hole 1001 corresponding to the second through hole 2001;

[0033] By placing the first workpiece in the second limiting groove, the second workpiece in the first limiting groove, and the second through hole of the second workpiece in communication with the first through hole of the first workpiece, the preliminary positioning of the first workpiece and the second workpiece is achieved. At this time, the limiting block is not embedded in the first limiting groove, which is convenient for personnel to take and put the workpiece;

[0034] There is a height difference between the first limiting groove 12 and the second limiting groove 13. The first limiting groove 12 located above the second limiting groove 13 is connected to the side wall of the fixing seat 11. A limiting block 14 is arranged inside the first limiting groove 12 and on one side of the second workpiece 2000. The lower end of the limiting block 14 is located between the second workpiece 200 and the side wall of the first limiting groove 12.

[0035] Furthermore, by arranging a limit block inside the first limit groove, and with the lower end of the limit block located between the second workpiece and the side wall of the first limit groove, after the workpiece is placed, the limit block is embedded between the first limit groove and the second workpiece, thereby limiting and fixing the second workpiece, and avoiding the situation in which the second workpiece rotates and deviates during the pressing process, causing the second through hole to be misaligned with the first through hole, thereby further improving the positioning accuracy of the second workpiece and reducing the risk of damage to the workpiece.

[0036] An arc groove 15 is formed on both sides of the limit block 14 .

[0037] A plurality of guide posts 600 are disposed between the mounting frame 200 and the base 100 , and the pressing plate 400 is sleeved on the circumferential outer wall of the guide posts 600 .

[0038] A fixing block 800 is installed at the bottom of the pressing plate 400 , and the push rod 500 is fixedly installed at the center of the fixing block 800 .

[0039] A connecting seat 900 having a groove 901 is fixedly mounted on the top of the pressing plate 400 , and the movable end of the cylinder 300 is embedded in the groove 901 through a connecting rod 902 .

[0040] The working principle is:

[0041] When in use, the first workpiece and the second workpiece are placed in the corresponding second limit groove and the first limit groove, so that the first through hole of the first workpiece is connected with the second through hole of the second workpiece, and then the second workpiece is fixed by the limit block to prevent the second workpiece from rotating and offsetting, and then the pin shaft is aligned with the first through hole and placed above the first through hole, and the cylinder is started to drive the pressure plate to move downward along the guide column, thereby driving the push rod at the bottom of the pressure plate to move downward, and the push rod pushes the pin shaft into between the first through hole and the second through hole, so that the first workpiece can be connected to the second workpiece through the pin shaft.

[0042] When the above-mentioned pressing device is used, the first workpiece is placed inside the second limiting groove, the second workpiece is placed inside the first limiting groove, and the second through hole of the second workpiece is connected to the first through hole of the first workpiece, thereby realizing the preliminary positioning of the first workpiece and the second workpiece. At this time, the limiting block is not embedded in the first limiting groove, which is convenient for personnel to take and put the workpiece;

[0043] Furthermore, by arranging a limit block inside the first limit groove, and with the lower end of the limit block located between the second workpiece and the side wall of the first limit groove, after the workpiece is placed, the limit block is embedded between the first limit groove and the second workpiece, thereby limiting and fixing the second workpiece, and avoiding the situation in which the second workpiece rotates and deviates during the pressing process, causing the second through hole to be misaligned with the first through hole, thereby further improving the positioning accuracy of the second workpiece and reducing the risk of damage to the workpiece.

[0044] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A pressing device for pressing a pin (3000) between a first workpiece (1000) and a second workpiece (2000), include: A base (100), a mounting frame (200) fixedly mounted on the top of the base (100), a pressing plate (400) with a push rod (500) fixedly mounted on the bottom thereof is arranged inside the mounting frame (200), and a cylinder (300) for driving the pressing plate (400) to move up and down is arranged on the top of the mounting frame (200); The invention is characterized in that: a base (10) having a fixing seat (11) is fixedly mounted on the top of the base (100); a first limiting groove (12) for placing a second workpiece (2000) and a second limiting groove (13) for placing a first workpiece (1000) are provided on the top of the fixing seat (11); one end of the second workpiece (2000) having a second through hole (2001) is embedded in the interior of the first workpiece (1000); and the first workpiece (1000) has a first through hole (1001) corresponding to and penetrating the second through hole (2001); There is a height difference between the first limiting groove (12) and the second limiting groove (13); the first limiting groove (12) located above the second limiting groove (13) is connected to the side wall of the fixing seat (11); a limiting block (14) is arranged inside the first limiting groove (12) and on one side of the second workpiece (2000); the lower end of the limiting block (14) is located between the second workpiece (2000) and the side wall of the first limiting groove (12).

2. The pressing device according to claim 1, Features: The limiting block (14) is in an L-shape.

3. The pressing device according to claim 1, Features: An arc-shaped groove (15) is provided on both sides of the limit block (14).

4. The pressing device according to claim 1, Features: The height of the upper end surface of the limiting block (14) is greater than the height of the upper surface of the first workpiece (1000).

5. The pressing device according to claim 1, Features: A plurality of guide columns (600) are arranged between the mounting frame (200) and the base (100), and the pressing plate (400) is sleeved on the circumferential outer wall of the guide column (600).

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