A clamping tool with a perforated base

Abstract

The utility model relates to a clamping tool with hole base, including tool frame, being equipped with upper fastening mechanism and lower clamping mechanism in tool frame, tool frame includes bottom plate, and the vertical installation left plate and right plate are installed on bottom plate, and the connecting plate is equipped between left plate and right plate, and the middle plate is equipped between connecting plate, upper fastening mechanism includes upper positioning mechanism and upper clamping mechanism, and upper positioning mechanism includes locating post and upper locating block, and locating post is symmetrically installed on left plate, and upper locating block is horizontally slidingly installed in middle plate, and upper locating block is driven by second drive arrangement, and upper clamping mechanism includes upper elastic clamping block, the utility model whole simple structure, and the repeat positioning precision is high, avoids making hole position deformation, greatly shortens the processing process and the auxiliary time of dialing and aligning time, reduces the human error, improves the processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of machining fixture technology, and relates to a clamping fixture with a hole base. Background Technology

[0002] Rotary bases are widely used in the aerospace and automation fields. Rotary bases usually have mounting holes. When machining these parts, the existing solution is to use traditional manual dial indicator alignment, which has the problems of cumbersome operation, poor accuracy and low processing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a clamping fixture with a perforated base, which can solve the above-mentioned problems.

[0004] According to the technical solution provided by this utility model: a clamping fixture with a perforated base includes a fixture frame, in which an upper fastening mechanism and a lower clamping mechanism are provided; the fixture frame includes a base plate, on which a left plate and a right plate are vertically mounted, a connecting plate is provided between the left plate and the right plate, and an intermediate plate is provided between the connecting plates; the upper fastening mechanism includes an upper positioning mechanism and an upper clamping mechanism, the upper positioning mechanism includes a positioning post and an upper positioning block, the positioning post is symmetrically mounted on the left plate, the upper positioning block is horizontally slidably mounted in the intermediate plate, and the upper positioning block is driven by a second driving device; the upper clamping mechanism includes an upper elastic clamping block, the end of the upper elastic clamping block is fixedly mounted in the middle of the upper part of the left plate, clamping claws are installed on both sides of the upper elastic clamping block, and driving rods are slidably provided on both sides of the upper part of the left plate, the driving rods are driven by a first driving device; the driving rods are located on the side of the upper elastic clamping block; the lower clamping mechanism includes an expansion ring installed in the lower part of the left plate, an expansion shaft is slidably mounted in the expansion ring, and the expansion shaft is driven by a third driving device.

[0005] As a further improvement of this utility model, the second driving device is a second driving cylinder. The cylinder body of the second driving cylinder is mounted on the right plate, and the piston rod of the second driving cylinder is hinged to the end of the upper positioning block by a pin.

[0006] As a further improvement of this utility model, the upper elastic clamping block is provided with upper dividing grooves on both sides, the upper dividing grooves divide the upper elastic clamping block into elastic clamping arms, and clamping claws are installed on the side of the elastic clamping arms; the drive rod is located on the side of the elastic clamping arms.

[0007] As a further improvement of this utility model, the first driving device is a first driving cylinder. A driving frame is installed on the side of the left plate, and the cylinder body of the first driving cylinder is installed on the driving frame. The piston rod of the first driving cylinder faces the upper elastic clamping block and is connected to one side of the contact rod plate. The other side of the contact rod plate is symmetrically connected to the driving rod.

[0008] As a further improvement of this utility model, the end of the expansion ring is axially and evenly distributed with expansion ring dividing grooves, which divide the end of the expansion ring into several expansion claws. The several expansion claws form an expansion hole, and the other end of the expansion ring is an expansion ring shaft with an expansion shaft hole.

[0009] As a further improvement of this utility model, the expansion shaft consists of an expansion plate and an expansion shaft. The expansion plate is located in the expansion hole, and the expansion plate and the expansion hole are fitted with a tapered shape; the expansion shaft slides in the expansion shaft hole.

[0010] As a further improvement of this utility model, the third driving device is a third driving cylinder. The cylinder body of the third driving cylinder is mounted on the left plate, and the piston end of the third driving cylinder is connected to the tail end of the expansion shaft. The tail end of the expansion shaft has an external thread structure.

[0011] The positive and progressive effects of this utility model are as follows: This utility model has a simple overall structure, high repeatability and positioning accuracy, avoids hole deformation, greatly shortens the dial indicator alignment time and auxiliary time in the processing, reduces human error, and improves processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional view of the present invention.

[0014] Figure 3 This is a cross-sectional view of the mounting base with holes of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the elastic clamping block of this utility model.

[0016] Figure 5 This is a schematic diagram of the expansion ring structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the expansion shaft of this utility model.

[0018] Figure 7 This is a schematic diagram of the expansion ring connecting plate of this utility model. Detailed Implementation

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, terms such as "comprising" and "having" mean that in addition to those already listed in "comprising" and "having," other unlisted contents may also be included; for example, a process, method, system, product, or device may include a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0022] Due to the angle of the drawing, some parts may not be drawn, but their positions and connections can be understood from the text descriptions.

[0023] like Figures 1-2 As shown, this utility model is a clamping fixture with a perforated base, including a fixture frame, in which an upper fastening mechanism and a lower clamping mechanism are provided.

[0024] The tooling frame includes a base plate 1, on which a left plate 2 and a right plate 3 are vertically mounted. A connecting plate 11 is provided between the left plate 2 and the right plate 3, and an intermediate plate 12 is provided between the connecting plates 11.

[0025] The upper fastening mechanism includes an upper positioning mechanism and an upper clamping mechanism. The upper positioning mechanism includes a positioning column 14 and an upper positioning block 5. The positioning column 14 is symmetrically installed on the left plate 2, and the upper positioning block 5 is horizontally slidably installed in the middle plate 12. The upper positioning block 5 is driven by the second driving device.

[0026] The second driving device is the second driving cylinder 13. The cylinder body of the second driving cylinder 13 is mounted on the right plate 3, and the piston rod of the second driving cylinder 13 is hinged to the end of the upper positioning block 5 by a pin.

[0027] The upper clamping mechanism includes an upper elastic clamping block 4, the end of which is fixedly installed in the middle of the upper part of the left plate 2. Clamping claws 10 are installed on both sides of the upper elastic clamping block 4. Drive rods 6 are slidably provided on both sides of the upper part of the left plate 2, and are driven by a first driving device. The drive rods 6 are located on the side of the upper elastic clamping block 4.

[0028] like Figure 4 As shown, the upper elastic clamping block 4 has upper dividing grooves 4-1 on both sides, which divide the upper elastic clamping block 4 into elastic clamping arms 4-2. Clamping claws 10 are installed on the side of the elastic clamping arms 4-2. The drive rod 6 is located on the side of the elastic clamping arms 4-2.

[0029] The first driving device is a first driving cylinder 7. A driving frame 8 is installed on the side of the left plate 2. The cylinder body of the first driving cylinder 7 is installed on the driving frame 8. The piston rod of the first driving cylinder 7 faces the upper elastic clamping block 4 and is connected to one side of the contact rod plate 9. The other side of the contact rod plate 9 is symmetrically connected to the driving rod 6.

[0030] The lower clamping mechanism includes a tension ring 15 installed at the lower part of the left plate 2, and a tension shaft 16 is slidably installed in the tension ring 15. The tension shaft 16 is driven by a third drive device.

[0031] like Figure 5 As shown, the end of the expansion ring 15 has an axially distributed annular expansion ring dividing grooves 15-1, which divide the end of the expansion ring 15 into several expansion claws 15-2. The several expansion claws 15-2 form an expansion hole. The other end of the expansion ring 15 is an expansion ring shaft 15-3, and the expansion ring shaft 15-3 is provided with an expansion shaft hole 15-4.

[0032] like Figure 6 As shown, the expansion shaft 16 consists of an expansion plate 16-1 and an expansion shaft 16-2. The expansion plate 16-1 is located in the expansion hole, and the expansion plate 16-1 and the expansion hole are fitted with a tapered shape. The expansion shaft 16-2 slides in the expansion shaft hole 15-4.

[0033] The third driving device is the third driving cylinder 17. The cylinder body of the third driving cylinder 17 is mounted on the left plate 2. The piston end of the third driving cylinder 17 is connected to the tail end 16-3 of the expansion shaft 16. The tail end 16-3 of the expansion shaft has an external thread structure.

[0034] The expansion ring 15 is installed on the lower part of the left plate 2 via the expansion ring connecting plate 18, as follows. Figure 7As shown, the connecting plate 18 has a shaft mounting hole 18-1 that matches the expansion ring shaft 15-3; the expansion ring 15 has a connecting screw hole 15-5, and the connecting plate 18 has a matching connecting hole 18-2. After the bolt passes through the connecting hole 18-2, it is screwed into the connecting screw hole 15-5 to fix the expansion ring 15 and the expansion ring connecting plate 18 together; the connecting plate 18 has an expansion claw hole 18-3 that matches the outer diameter of the expansion claw 15-2. Part of the expansion claw 15-2 is located in the expansion claw hole 18-3, and part of the expansion claw 15-2 extends out of the expansion claw hole 18-3. There is a gap between the expansion claw hole 18-3 and the expansion claw 15-2 to prevent the expansion claw 15-2 from getting stuck.

[0035] The lower clamping mechanism is provided with an elastic support mechanism on its side. The elastic support mechanism includes a support rod 19, which slides horizontally in the lower part of the intermediate plate 12. An elastic element is sleeved on the outer periphery of the support rod 19, and the support rod 19 is pushed by a fourth drive device.

[0036] The elastic element is a spring 20. The front end of the support rod 19 is provided with a retaining ring 19-1. The two ends of the spring 20 abut against the retaining ring 19-1 and the intermediate plate 12 respectively. The spring 20 gives the support rod 19 a leftward elastic force.

[0037] The fourth drive device is the fourth drive cylinder 21. The cylinder body of the fourth drive cylinder 21 is installed on the lower part of the right plate 3, and the piston end of the fourth drive cylinder 21 is equipped with a top column 22.

[0038] To prevent the support rod 19 from sliding to the left out of the middle plate 12, an anti-detachment plate 23 is installed on the right end of the support rod 19.

[0039] The lower part of the intermediate plate 12 is provided with a sliding hole for the support rod 19 to slide. In order to extend the service life of the sliding hole, a spacer is installed in the slider.

[0040] The working process of this utility model is as follows: like Figure 3 As shown, the perforated base 24 is placed into the tooling, and the holes of the perforated base 24 fit around the outer periphery of the expanding claw 15-2. The lower part of the perforated base 24 abuts against the support rod 19, and the spring 20 provides a pushing force to the perforated base 24 through the support rod 19. The second drive cylinder 13 pushes the upper positioning block 5, causing the upper part of the perforated base 24 to abut against the positioning post 14. The third drive cylinder 17 drives the expanding shaft 16 to retract, and the expanding plate 16-1 contacts the expanding claw 15-2. The tapered extension of the expanding claw 15-2 fixes the holes of the perforated base 24.

[0041] The first drive cylinder 7 drives the drive rod 6 to move the upper elastic clamping block 4. The upper elastic clamping block 4 contacts the elastic clamping arm 4-2, and the elastic clamping arm 4-2 moves inward. The two side clamps 10 fix the upper part of the perforated base 24.

[0042] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A clamping fixture with a perforated base, characterized in that, The fixture includes a tooling frame, which has an upper fastening mechanism and a lower clamping mechanism. The tooling frame includes a base plate (1), on which a left plate (2) and a right plate (3) are vertically mounted. A connecting plate (11) is provided between the left plate (2) and the right plate (3), and an intermediate plate (12) is provided between the connecting plates (11). The upper fastening mechanism includes an upper positioning mechanism and an upper clamping mechanism. The upper positioning mechanism includes a positioning column (14) and an upper positioning block (5). The positioning column (14) is symmetrically mounted on the left plate (2), and the upper positioning block (5) is horizontally slidably mounted in the intermediate plate (12). The positioning block (5) is driven by the second driving device; the upper clamping mechanism includes an upper elastic clamping block (4), the end of which is fixedly installed in the middle of the upper part of the left plate (2), and clamping claws (10) are installed on both sides of the upper elastic clamping block (4). A driving rod (6) is slidably provided on both sides of the upper part of the left plate (2), and the driving rod (6) is driven by the first driving device; the driving rod (6) is located on the side of the upper elastic clamping block (4); the lower clamping mechanism includes a tension ring (15) installed in the lower part of the left plate (2), and a tension shaft (16) is slidably installed in the tension ring (15), and the tension shaft (16) is driven by the third driving device.

2. The clamping fixture with a perforated base as described in claim 1, characterized in that, The second driving device is the second driving cylinder (13). The cylinder body of the second driving cylinder (13) is mounted on the right plate (3). The piston rod of the second driving cylinder (13) is hinged to the end of the upper positioning block (5) by a pin.

3. The clamping fixture with a perforated base as described in claim 1, characterized in that, The upper elastic clamping block (4) has upper dividing grooves (4-1) on both sides. The upper dividing grooves (4-1) divide the upper elastic clamping block (4) into elastic clamping arms (4-2) on both sides. The clamping claws (10) are installed on the side of the elastic clamping arms (4-2). The drive rod (6) is located on the side of the elastic clamping arms (4-2).

4. The clamping fixture with a perforated base as described in claim 1, characterized in that, The first driving device is a first driving cylinder (7). A driving frame (8) is installed on the side of the left plate (2). The cylinder body of the first driving cylinder (7) is installed on the driving frame (8). The piston rod of the first driving cylinder (7) faces the upper elastic clamp (4) and is connected to one side of the contact rod plate (9). The other side of the contact rod plate (9) is symmetrically connected to the driving rod (6).

5. The clamping fixture with a perforated base as described in claim 1, characterized in that, The end of the expansion ring (15) is axially and evenly distributed with expansion ring dividing grooves (15-1). The expansion ring dividing grooves (15-1) divide the end of the expansion ring (15) into several expansion claws (15-2). The several expansion claws (15-2) form an expansion hole. The other end of the expansion ring (15) is an expansion ring shaft (15-3). An expansion shaft hole (15-4) is provided in the expansion ring shaft (15-3).

6. The clamping fixture with a perforated base as described in claim 5, characterized in that, The expansion shaft (16) consists of an expansion plate (16-1) and an expansion shaft (16-2). The expansion plate (16-1) is located in the expansion hole, and the expansion plate (16-1) and the expansion hole are fitted with a tapered shape; the expansion shaft (16-2) slides in the expansion shaft hole (15-4).

7. The clamping fixture with a perforated base as described in claim 5, characterized in that, The third driving device is the third driving cylinder (17). The cylinder body of the third driving cylinder (17) is installed on the left plate (2). The piston end of the third driving cylinder (17) is connected to the tail end (16-3) of the expansion shaft (16). The tail end (16-3) of the expansion shaft has an external thread structure.

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