Drilling clamp for machining steering engine connecting arm spare and accessory parts

Abstract

The utility model belongs to the technical field of machining, particularly relates to a drilling clamp for machining parts of a connecting arm of a steering engine, and aims to solve the problems that an existing traditional clamp is simple in positioning and difficult to accurately clamp complex workpieces; in order to solve the problems that in the prior art, clamping force is uneven or unstable, and a workpiece is prone to moving or deforming in the machining process, according to the scheme, the clamping device comprises a mounting base, a mounting plate is fixedly mounted at the top of the mounting base, two fixing long strips are fixedly mounted at the top of the mounting plate, and a containing groove for containing the workpiece is formed between the two fixing long strips; the drilling clamp further comprises a plurality of air cylinders, the air cylinders are all fixedly installed on the top of the installation plate, and according to the drilling clamp, through the design of accurate positioning and stable clamping, the machining precision and stability are remarkably improved; due to the characteristic of flexible adjustment, the universality and adaptability of the clamp are enhanced; the structure is compact, installation is easy, the production cost is reduced, and the production efficiency and the machining quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a drilling fixture for processing steering machine connecting arm parts. Background Art

[0002] In the machinery manufacturing industry, the machining accuracy of steering gear connecting arm components is crucial to the vehicle's handling and safety. Especially during the drilling process, precise positioning and secure clamping of the workpiece are key factors in ensuring machining quality and efficiency. However, existing drilling fixtures still have the following problems:

[0003] Traditional fixtures often use simple mechanical structures for positioning and clamping, which makes it difficult to achieve precise positioning of complex-shaped workpieces and easily leads to processing errors. Secondly, the clamping force of the fixture is uneven or unstable, which can easily cause the workpiece to move or deform during processing, affecting the processing quality.

[0004] In response to the above problems, the present utility model document proposes a drilling fixture for processing steering gear connecting arm parts. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art, such as simple positioning of traditional fixtures, difficulty in accurately clamping complex workpieces, uneven or unstable clamping force, and easy movement or deformation of workpieces during processing, and to propose a drilling fixture for processing steering gear connecting arm parts.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A drilling fixture for machining steering gear connecting arm parts, comprising:

[0008] A mounting base, wherein a mounting plate is fixedly mounted on the top of the mounting base, two fixed strips are fixedly mounted on the top of the mounting plate, and a placement groove for placing a workpiece is formed between the two fixed strips;

[0009] It also includes a plurality of cylinders, each of which is fixedly mounted on the top of the mounting plate. The plurality of cylinders are arranged in pairs and correspond to each other, and the two cylinders in the same group are respectively located on one side of the two fixed strips that are away from each other;

[0010] It also includes a plurality of limit seats, a plurality of the limit seats are fixedly mounted on the top of the mounting plate, a plurality of the limit seats correspond to the corresponding cylinders, a plurality of the tops of the limit seats are slidably connected with a connecting block, a plurality of sides of the connecting blocks are fixedly connected to one end of the piston rod of the adjacent cylinder, a plurality of the connecting blocks are fixedly penetrated by a clamping block inside, a plurality of the clamping blocks are slidably matched with the top of the fixed strip, and the corresponding two clamping blocks cooperate with each other to clamp and fix the workpiece in the placement groove;

[0011] It also includes a plurality of limit blocks, each of which is arranged in the placement groove and fixedly connected to the top of the mounting plate, and each of which is slidably matched with two adjacent connecting blocks to limit the moving distance of the clamping block;

[0012] It also includes multiple groups of positioning components, which are used to center the workpiece placed in the placement groove.

[0013] In one possible design, the positioning assembly includes two sliding cavities and an adjustment cavity opened inside the fixed strip, the adjustment cavity is located between the two sliding cavities, and the bottom and top inner walls of the two sliding cavities are opened with limiting grooves, and the two sliding cavities are slidably connected with sliders through the limiting grooves, and the same end of the two sliders is fixedly installed with a positioning block, and the two positioning blocks are located in the placement groove, and the side of the two positioning blocks close to each other is provided with an inclined surface for driving the workpiece to move.

[0014] In a possible design, the positioning assembly also includes a double-threaded screw that rotates and passes through the adjusting cavity, and the two ends of the double-threaded screw respectively rotate through the inner wall of one side of the two sliding cavities and are rotatably connected to the inner wall of the other side. The two sliders are threadedly connected to the double-threaded screw, and the two sliders are respectively located on two opposite threaded sections of the double-threaded screw. The outer wall of the double-threaded screw is fixedly sleeved with a connecting gear, and the connecting gear is located in the adjusting cavity. A driving gear is rotatably installed inside the adjusting cavity, and the driving gear is meshed with the connecting gear. The driving gear is located on the side away from the positioning block, and one side of the driving gear passes through the outer wall of the fixed strip and extends to the outside of the fixed strip.

[0015] In a possible design, an arcuate groove is provided on a side of the fixed strip away from the positioning block, and the arcuate groove cooperates with the driving gear to facilitate the shifting of the driving gear.

[0016] In one possible design, a plurality of chip removal holes are provided at the bottom of the fixed strip, and the plurality of chip removal holes cooperate with the limiting grooves on the inner wall of the bottom of the corresponding sliding cavity to discharge the processing waste chips accumulated inside the limiting grooves.

[0017] In a possible design, a plurality of mounting holes are provided at the bottom of the mounting base for fixing the fixture to the processing platform.

[0018] In this application, when it is necessary to drill the steering gear connecting arm spare parts, first place the workpiece in the placement slot, and by turning the driving gear, the user can drive the double-threaded screw to rotate, and then drive the two positioning blocks to move toward the center of the workpiece at the same time; then the two positioning blocks can contact the workpiece, and by utilizing the inclined surface design of the positioning blocks, the workpiece can be driven to move accordingly, completing the adjustment of the workpiece position and realizing the center positioning of the workpiece; after that, the user can control multiple cylinders to start, and through the drive of the cylinders, the corresponding two clamping blocks can be brought close to each other to achieve clamping and fixing of the workpiece; when the two clamping blocks approach and move away from each other, the connection With the cooperation of the block and the adjacent limit block, the moving range of the two clamping blocks can be limited; after positioning is completed, the user can start the drilling equipment to drill the workpiece, and multiple workpieces can be placed in the placement slot at the same time to ensure high processing efficiency; after processing is completed, reverse the operation of the cylinder and positioning assembly to release the workpiece, take it out and prepare for the next batch of processing; the waste chips generated during the processing may enter the sliding cavity through the slide groove. When the user is performing equipment maintenance, he can control the movement of the slider inside the sliding cavity to discharge the waste chips inside the sliding cavity through the chip removal hole to ensure the normal use of the positioning block and the cleanliness of the inside of the fixture.

[0019] Beneficial effects:

[0020] In the present invention, a drilling fixture for machining steering gear connecting arm parts is capable of automatically centering a workpiece placed in a placement slot by means of multiple positioning components, including a positioning block with an inclined surface and a double-threaded screw adjustment mechanism. By rotating the driving gear to drive the double-threaded screw, the two sliders can be moved synchronously but in opposite directions within the sliding cavity, thereby driving the positioning block close to the workpiece and automatically centering it, greatly improving positioning accuracy and stability.

[0021] In the utility model, a drilling fixture for machining steering gear connecting arm parts realizes fast and stable clamping of the workpiece by utilizing a cylinder to drive the connection block and the clamping block; a plurality of cylinders are grouped in pairs and are respectively located on both sides of a fixed long strip, and the clamping blocks are driven to move by the extension and contraction of the cylinders. The same workpiece is fixed by four clamping blocks applying force to the corners respectively, thereby achieving uniform clamping of the workpiece, effectively preventing the workpiece from moving and deforming during the machining process, and ensuring machining accuracy;

[0022] In the utility model, a drilling fixture for machining steering gear connecting arm parts is provided, wherein the cylinder and positioning assembly in the fixture are designed as adjustable structures, which can be flexibly adjusted according to the size and shape of different workpieces, thereby improving the versatility and adaptability of the fixture; at the same time, the design of the arc-shaped groove facilitates manual shifting of the drive gear, simplifies the operation process, and improves work efficiency;

[0023] In the utility model, the drilling clamp significantly improves the processing accuracy and stability through the design of precise positioning and firm clamping; its flexible adjustment feature enhances the versatility and adaptability of the clamp; the setting of the chip removal hole effectively avoids the accumulation of waste chips and extends the life of the clamp; the structure is compact and easy to install, which reduces production costs, improves overall production efficiency and processing quality, and provides strong support for the high-precision processing of steering gear connecting arm parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural diagram of a drilling fixture for machining steering gear connecting arm parts proposed in the present invention;

[0025] Figure 2 This is a side structural schematic diagram of a drilling fixture for machining steering gear connecting arm parts proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the positioning assembly structure of a drilling fixture for machining steering gear connecting arm parts proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of a top-view cross-sectional structure of a positioning assembly of a drilling fixture for machining steering gear connecting arm parts proposed in the present invention;

[0028] Figure 5 This is a schematic diagram of the disassembled structure of the positioning assembly of a drilling fixture for machining steering gear connecting arm parts proposed in the present invention;

[0029] Figure 6 The present invention is a schematic diagram of the bottom structure of a fixed long strip of a drilling fixture for machining steering gear connecting arm parts.

[0030] In the figure: 1. Mounting base; 2. Mounting plate; 3. Fixed strip; 4. Cylinder; 5. Limit seat; 6. Connecting block; 7. Clamping block; 8. Limit block; 9. Sliding cavity; 10. Adjusting cavity; 11. Limiting groove; 12. Slider; 13. Positioning block; 14. Double-thread screw; 15. Connecting gear; 16. Driving gear; 17. Chip removal hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1

[0033] Reference Figure 1-6 A drilling fixture includes: a mounting base 1, a mounting plate 2, a fixed strip 3, a cylinder 4, a limit seat 5, a connecting block 6, a clamping block 7, a limit block 8 and a positioning component.

[0034] First, the mounting base 1 serves as the basic supporting component of the entire fixture, with a mounting plate 2 fixedly mounted on its top. Two parallel fixed strips 3 are further fixedly mounted on the top of the mounting plate 2, and a placement groove is formed between the two fixed strips 3 for placing the workpiece to be processed.

[0035] In order to achieve the clamping and fixing of the workpiece, a plurality of cylinders 4 are further installed on the top of the mounting plate 2. These cylinders 4 are grouped in pairs and correspond to each other. Each group of cylinders is located on the outside of the two fixed strips 3. One end of the piston rod of the cylinder 4 is fixedly connected to the connecting block 6. The connecting block 6 is slidably mounted on the mounting plate 2 through the limit seat 5. A clamping block 7 is fixedly passed through the inside of the connecting block 6. The clamping block 7 can slide on the top of the fixed strip 3 to achieve the clamping and release of the workpiece.

[0036] Specifically, the workpiece is placed in the placement slot, which cooperates with four adjacent clamping blocks 7. The four clamping blocks 7 can apply force to the four corners of the workpiece at the same time, which is conducive to maintaining uniform force clamping of the workpiece.

[0037] In order to prevent the clamping block 7 from exceeding the predetermined range during movement, a plurality of limit blocks 8 are set in the placement groove and fixedly connected to the top of the mounting plate 2. These limit blocks 8 slide together with the two adjacent connecting blocks 6 to ensure that the moving distance of the clamping block 7 can be limited.

[0038] In addition, in order to achieve precise positioning of the workpiece, the present embodiment also provides multiple groups of positioning components, each group of positioning components includes two sliding cavities 9 and an adjustment cavity 10 opened inside the fixed strip 3, and the bottom and top inner walls of the sliding cavity 9 are provided with limiting grooves 11. The interiors of the two sliding cavities 9 are slidably connected with sliders 12 through the limiting grooves 11, and one end of the two sliders 12 is fixedly installed with a positioning block 13. The two positioning blocks 13 cooperate with each other, and the inclined surface design of the two positioning blocks 13 enables the workpiece to automatically adjust its position when placed in the placement slot to achieve center positioning.

[0039] In order to achieve the synchronous movement of the positioning block 13, a double-threaded screw 14 is rotated through the adjusting chamber 10. The two ends of the double-threaded screw 14 pass through the two sliding chambers 9 respectively and are rotatably connected to their inner walls. The two sliders 12 are respectively threadedly connected to the two opposite thread sections of the double-threaded screw 14. Therefore, when the double-threaded screw 14 rotates, the two sliders 12 will move toward the center or both sides at the same time, thereby adjusting the position of the positioning block 13; the outer wall fixed sleeve of the double-threaded screw 14 is provided with a connecting gear 15, which meshes with the driving gear 16 in the adjusting chamber 10. By toggling the driving gear 16, the position of the positioning block 13 can be easily adjusted.

[0040] The present application can be used in the field of mechanical processing technology, and can also be used in other fields applicable to the present application.

[0041] Example 2

[0042] refer to Figure 2 、 5 6. Improvement based on Example 1: A drilling fixture for machining steering gear connecting arm parts, which is applied to the field of mechanical processing technology;

[0043] In order to facilitate the operation of the driving gear 16 , an arc-shaped groove is further provided on the side of the fixed strip 3 away from the positioning block 13 . The groove cooperates with the driving gear 16 , so that the operator can easily turn the driving gear 16 .

[0044] In order to ensure a good adjustment effect of the positioning block 13, a plurality of chip removal holes 17 are also opened at the bottom of the fixed strip 3. These chip removal holes 17 cooperate with the limiting grooves 11 on the inner wall of the bottom of the sliding cavity 9 to prevent the waste chips generated during the processing from accumulating in the sliding cavity 9.

[0045] Finally, a plurality of mounting holes are provided at the bottom of the mounting base 1 for firmly mounting the fixture on the processing platform to ensure stability and precision during the processing.

[0046] However, as is well known to those skilled in the art, the working principle and wiring method of the cylinder 4 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0047] The working principle and use process of this technical solution are as follows: when it is necessary to drill the steering gear connecting arm spare parts, first place the workpiece in the placement slot, and by turning the driving gear 16, the user can drive the double-threaded screw 14 to rotate, and then drive the two positioning blocks 13 to move toward the center of the workpiece at the same time; then the two positioning blocks 13 can contact the workpiece, and by utilizing the inclined surface design of the positioning blocks 13, the workpiece can be driven to move accordingly, completing the adjustment of the workpiece position and realizing the center positioning of the workpiece; after that, the user can control the start-up of multiple cylinders 4, and through the drive of the cylinders 4, the corresponding two clamping blocks 7 can be brought close to each other to achieve clamping and fixing of the workpiece; the two clamping blocks 7 are moved closer and farther away from each other. When the workpiece is separated, the movement range of the two clamping blocks 7 can be limited with the cooperation of the connecting block 6 and the adjacent limit block 8; after the positioning is completed, the user can start the drilling equipment to drill the workpiece, and multiple workpieces can be placed in the placement slot at the same time, which can ensure high processing efficiency; after the processing is completed, the cylinder 4 and the positioning component are operated in reverse to release the workpiece, take it out and prepare for the next batch of processing; the waste chips generated during the processing may enter the sliding cavity 9 through the slide groove. When the user is performing maintenance on the equipment, the user can control the movement of the slider 12 inside the sliding cavity 9 to discharge the waste chips inside the sliding cavity 9 through the chip removal hole 17 to ensure the normal use of the positioning block 13 and the cleanliness of the inside of the fixture.

[0048] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drilling fixture for machining steering gear connecting arm parts, characterized in that: include: A mounting base (1), a mounting plate (2) is fixedly mounted on the top of the mounting base (1), two fixed strips (3) are fixedly mounted on the top of the mounting plate (2), and a placement groove for placing a workpiece is formed between the two fixed strips (3); It also includes a plurality of cylinders (4), wherein the plurality of cylinders (4) are fixedly mounted on the top of the mounting plate (2), and the plurality of cylinders (4) are arranged in pairs and correspond to each other, and the two cylinders (4) in the same group are respectively located on the sides of the two fixed strips (3) that are away from each other; It also includes a plurality of limit seats (5), wherein the plurality of limit seats (5) are fixedly mounted on the top of the mounting plate (2), and the plurality of limit seats (5) correspond to the corresponding cylinders (4). The tops of the plurality of limit seats (5) are slidably connected with connecting blocks (6), and one side of the plurality of connecting blocks (6) is fixedly connected with one end of the piston rod of the adjacent cylinder (4). The interiors of the plurality of connecting blocks (6) are fixedly penetrated with clamping blocks (7), and the plurality of clamping blocks (7) are slidably matched with the top of the fixed strip (3). The corresponding two clamping blocks (7) cooperate with each other to clamp and fix the workpiece in the placement groove. It also includes a plurality of limit blocks (8), wherein the plurality of limit blocks (8) are all arranged in the placement groove and the plurality of limit blocks (8) are all fixedly connected to the top of the mounting plate (2), and the plurality of limit blocks (8) are all slidably matched with two adjacent connecting blocks (6) to limit the moving distance of the clamping block (7); It also includes multiple groups of positioning components, which are used to center the workpiece placed in the placement groove.

2. A drilling fixture for machining steering gear connecting arm parts according to claim 1, characterized in that: The positioning assembly includes two sliding cavities (9) and an adjusting cavity (10) opened inside the fixed strip (3), the adjusting cavity (10) is located between the two sliding cavities (9), the bottom and top inner walls of the two sliding cavities (9) are both provided with limiting grooves (11), the two sliding cavities (9) are both slidably connected with sliders (12) through the limiting grooves (11), the same end of the two sliders (12) is fixedly installed with a positioning block (13), the two positioning blocks (13) are both located in the placement groove, and the sides of the two positioning blocks (13) close to each other are both provided with inclined surfaces for driving the workpiece to move.

3. The drilling fixture for machining steering gear connecting arm parts according to claim 2, characterized in that: The positioning assembly further comprises a double-threaded screw (14) that rotates and passes through the adjustment cavity (10), and the two ends of the double-threaded screw (14) respectively rotate and pass through the inner wall of one side of the two sliding cavities (9) and are rotatably connected to the inner wall of the other side thereof, and the two sliders (12) are both threadedly connected to the double-threaded screw (14), and the two sliders (12) are respectively located on two opposite threaded sections of the double-threaded screw (14), and the outer wall of the double-threaded screw (14) is fixedly sleeved with a connecting gear (15), and the connecting gear (15) is located in the adjustment cavity (10), and a driving gear (16) is rotatably installed inside the adjustment cavity (10), and the driving gear (16) is meshed with the connecting gear (15), and the driving gear (16) is located on the side away from the positioning block (13), and one side of the driving gear (16) passes through the outer wall of the fixed strip (3) and extends to the outside of the fixed strip (3).

4. The drilling fixture for machining steering gear connecting arm parts according to claim 3, characterized in that: An arcuate groove is provided on one side of the fixed strip (3) away from the positioning block (13), and the arcuate groove cooperates with the driving gear (16) to facilitate the shifting of the driving gear (16).

5. The drilling fixture for machining steering gear connecting arm parts according to claim 2, characterized in that: The bottom of the fixed strip (3) is provided with a plurality of chip removal holes (17), and the plurality of chip removal holes (17) are matched with the limiting grooves (11) on the inner wall of the bottom of the corresponding sliding cavity (9) to discharge the processing waste chips accumulated inside the limiting grooves (11).

6. The drilling fixture for machining steering gear connecting arm parts according to claim 1, characterized in that: The bottom of the mounting base (1) is provided with a plurality of mounting holes for fixing the clamp to the processing platform.

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