CN219925292U - Workpiece drilling positioning fixture for machining - Google Patents

Abstract

The utility model discloses a workpiece drilling positioning fixture for machining, which comprises the following components: the lateral adjusting mechanism comprises a first screw rod rotationally connected with the side wall of the base, and a first screw sleeve is sleeved on the outer ring of the first screw rod in a rotating manner; the longitudinal adjusting mechanism comprises a fixed seat, the bottom of the fixed seat is fixedly connected with a first wire sleeve, the side wall of the fixed seat is rotationally connected with a second screw rod, and a second wire sleeve is rotationally sleeved on the outer ring of the second screw rod; the clamping mechanism comprises a mounting seat, the outer wall of the bottom of the mounting seat is fixedly connected with a second wire sleeve, the inner wall of the bottom of the mounting seat is slidably connected with two racks, and the top of each rack is welded with a connecting rod. Through the cooperation of horizontal adjustment mechanism and vertical adjustment mechanism, conveniently remove fixture's position for the work piece of fixing in fixture can remove in the in-process of processing, need not carry out the dismouting again, greatly improved the drilling efficiency of work piece.

Description

A kind of workpiece drilling and positioning fixture for machining

Technical field

The utility model relates to a workpiece drilling and positioning fixture for machining, belonging to the technical field of positioning fixtures.

Background technique

The fixture refers to the device used to fix the processing object during the mechanical manufacturing process so that it can occupy the correct position for construction or inspection. It is also called a fixture. Broadly speaking, in any process during the process, the device used to install the workpiece quickly, conveniently and safely can be called a fixture.

The fixture usually consists of a positioning component (to determine the correct position of the workpiece in the fixture), a clamping device, a tool setting guide component (to determine the relative position of the tool and the workpiece or to guide the direction of the tool), and an indexing device (to enable the workpiece to be installed in one installation). To complete the processing of several stations, it consists of two types: rotary indexing device and linear moving indexing device), connecting components and clamp body (clamp base).

In the existing technology, for example, the Chinese patent number is: CN217121844U "A workpiece drilling positioning fixture for machining", which includes a stable base plate located above the ground, and a rotatable annular turret is provided in the middle of the upper surface of the stable base plate. , a first fixed rack is fixedly installed at the bottom of the outer surface of the annular turret, a rotating motor is fixedly installed on the left side of the upper surface of the stable base plate, and a rotating gear is fixedly installed at the output end of the rotating motor. A fixed rack meshes with the rotating gear. A stabilizing disk is fixedly installed on the upper surface of the annular turret. An adjusting clamping device is fixedly installed on the lower surface of the stabilizing disk. The rear side of the upper surface of the stable bottom plate is fixed. An L-shaped vertical plate is installed, and a sliding movable frame is provided on the top inner wall of the L-shaped vertical plate. A biaxial motor is fixedly installed inside the movable frame, and a rotating gear is fixedly connected to the output end of the biaxial motor. A second fixed gear rack is fixedly connected to the inner wall of the top of the L-shaped vertical plate. The rotating gear meshes with the second fixed gear rack. An electric push rod is installed on the lower surface of the movable frame and a rotating motor is fixedly installed at its output end. , a drill bit is fixedly connected to the output end of the rotating motor. The beneficial effect is that the push rod motor drives the push rod to drive the connecting bracket to move and at the same time drives the moving rod to push the moving vertical plate and the clamping plate to move to clamp and fix the workpiece, which has a better clamping and fixing effect on the workpiece and facilitates more accurate The workpiece can be drilled quickly without repeatedly adjusting the position of the workpiece, which is conducive to better adjustment operations and improves the convenience of use.

However, in the prior art, when changing the position of drilling the workpiece, the workpiece needs to be disassembled from the fixture and re-fixed, which extremely consumes the processing time of drilling the workpiece.

Utility model content

The purpose of this utility model is to address the above-mentioned problems existing in the prior art, overcome the shortcomings of the prior art, and design a workpiece drilling and positioning fixture for machining that is convenient for moving the fixed workpiece.

In order to achieve the above objects, the technical solution of the present utility model is:

A workpiece drilling and positioning fixture for machining, including:

Lateral adjustment mechanism, the horizontal adjustment mechanism includes a screw rod that is rotationally connected to the side wall of the base, and a screw sleeve that is rotated around the outer ring of the screw rod;

Longitudinal adjustment mechanism, the longitudinal adjustment mechanism includes a fixed base, the bottom of the fixed base is fixedly connected to the screw sleeve one, and the side wall of the fixed base is rotatably connected to the screw rod two, and the outer ring of the screw rod two is rotated and sleeved Silk cover two;

Clamping mechanism, the clamping mechanism includes a mounting base, the bottom outer wall of the mounting base is fixedly connected to the two wire sleeves, the bottom inner wall of the mounting base is slidingly connected with two racks, and the top of the rack is welded with The connecting rod runs through the top of the mounting base and is fixedly connected with a splint.

Preferably, one end of the screw rod 1 passes through one side of the base and is fixedly connected to the rocker handle 1.

Preferably, two guide rods are fixedly connected to the side walls of the base, and a sliding sleeve is fixedly connected to the outer wall of the first wire sleeve. The sliding sleeve is slidably mounted on the outer ring of the guide rod.

Preferably, one end of the screw rod 2 passes through one side of the fixed base and is fixedly connected to the rocker handle 2.

Preferably, the bottom inner wall of the fixing seat is provided with a guide groove, the outer wall of the wire sleeve 2 is fixedly connected with a guide block, and the guide block is slidingly connected to the guide groove.

Preferably, a gear is rotatably connected to the bottom inner wall of the mounting base, and the gear is located in the middle of two racks and meshes with them. A cylinder is fixedly connected to the top inner wall of the mounting base, and one of the racks is connected to the cylinder. The output terminal is fixedly connected.

Preferably, two sliding openings are provided on the top of the mounting base, and the two connecting rods are slidingly connected to the two sliding openings respectively.

The beneficial effects achieved by this utility model are:

Through the cooperation of the transverse adjustment mechanism and the longitudinal adjustment mechanism, it is convenient to move the position of the clamping mechanism, so that the workpiece fixed in the clamping mechanism can be moved during the processing without re-disassembly and assembly, which greatly improves the Improve the drilling efficiency of the workpiece.

Description of the drawings

Figure 1 shows a schematic three-dimensional structural diagram of an embodiment of the present utility model;

Figure 2 is a schematic three-dimensional structural diagram of the lateral adjustment mechanism shown in Figure 1;

Figure 3 is a schematic three-dimensional structural diagram of the longitudinal adjustment mechanism shown in Figure 1;

Figure 4 is a schematic three-dimensional structural view of the clamping mechanism shown in Figure 1.

Reference signs: 1. Transverse adjustment mechanism; 11. Base; 12. Screw one; 13. Rocker one; 14. Wire sleeve one; 15. Sliding sleeve; 16. Guide rod; 2. Longitudinal adjustment mechanism; 21. Fixed seat; 22. Guide groove; 23. Two screw rods; 24. Two rocking handles; 25. Two wire sleeves; 26. Guide block; 3. Clamping mechanism; 31. Mounting seat; 32. Gear; 33. Rack ;34. Cylinder; 35. Connecting rod; 36. Plywood.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but cannot be used to limit the scope of protection of the present invention.

Example 1

As shown in Figures 1-3, the utility model proposes a workpiece drilling and positioning fixture for machining, including a transverse adjustment mechanism 1. The transverse adjustment mechanism 1 includes a screw rod 12 that is rotationally connected to the side wall of the base 11. The screw rod The outer ring rotating sleeve of the one 12 is provided with a wire sleeve 14; the longitudinal adjustment mechanism 2, the longitudinal adjustment mechanism 2 includes a fixed base 21, the bottom of the fixed base 21 is fixedly connected to the wire sleeve 14, and the side walls of the fixed base 21 are rotationally connected There is a screw rod 23, and the outer ring of the screw rod 23 is rotated with a screw sleeve 25; one end of the screw rod 12 penetrates one side of the base 11, and is fixedly connected with a rocker 13, and the side wall of the base 11 is fixed Two guide rods 16 are connected. The outer wall of the screw sleeve 14 is fixedly connected with a sliding sleeve 15. The sliding sleeve 15 is slidably sleeved on the outer ring of the guide rod 16. One end of the screw rod 23 runs through one side of the fixed seat 21. The rocker handle 24 is fixedly connected to the crank handle 24. The inner bottom wall of the fixed base 21 is provided with a guide groove 22. The outer wall of the wire sleeve 25 is fixedly connected to a guide block 26. The guide block 26 is slidingly connected to the guide groove 22.

In this embodiment, through the sliding fit of the sliding sleeve 15 and the guide rod 16, when the screw rod 12 rotates, the screw rod 12 will drive the screw sleeve 14 to move laterally. Through the sliding of the guide block 26 and the guide groove 22 Cooperate with each other so that when the second screw rod 23 rotates, the second screw rod 23 will drive the second screw sleeve 25 to move longitudinally.

Example 2

As shown in Figures 1 and 4, this utility model proposes a workpiece drilling and positioning fixture for machining. Compared with Embodiment 1, this embodiment also includes a clamping mechanism 3. The clamping mechanism 3 includes a mounting base 31 , the bottom outer wall of the mounting base 31 is fixedly connected to the wire sleeve 25. The bottom inner wall of the mounting base 31 is slidingly connected with two racks 33. A connecting rod 35 is welded to the top of the rack 33, and the connecting rod 35 runs through the top of the mounting base 31. , and is fixedly connected with a splint 36. A gear 32 is rotatably connected to the bottom inner wall of the mounting base 31. The gear 32 is located between the two racks 33 and meshes with them. A cylinder 34 is fixedly connected to the top inner wall of the mounting base 31, one of which is The bar 33 is fixedly connected to the output end of the cylinder 34. There are two sliding openings on the top of the mounting base 31, and the two connecting rods 35 are slidingly connected to the two sliding openings respectively.

In this embodiment, through the meshing of the gear 32 with the two racks 33, when one rack 33 moves, it will drive the other rack 33 to move in the opposite direction, thereby driving the two clamping plates 36 to move away from each other. Or move closer to each other.

Working principle: When the cylinder 34 is started to drive the rack 33 connected to it to move, the gear 32 can drive another rack 33 to move, and the two racks 33 will drive the two splints 36 away from each other or away from each other through the connecting rod 35. Move in the direction of approaching each other. When the two splints 36 are opened, the workpiece can be placed therein, and then the two splints 36 are driven to merge to fix the workpiece and wait for processing and drilling;

When it is necessary to move the fixed workpiece, shake the handle 13 to drive the screw rod 12 to rotate. Through the sliding cooperation between the sliding sleeve 15 and the guide rod 16, when the screw rod 12 rotates, the screw rod 12 will rotate. The screw sleeve 14 is driven to move laterally, and the handle 24 can also be shaken to drive the screw rod 23 to rotate. Through the sliding cooperation between the guide block 26 and the guide groove 22, when the screw rod 23 rotates, the screw rod 23 will rotate. The wire sleeve 25 is driven to move longitudinally, thereby being able to adjust the position of the fixed workpiece. This device is suitable for multi-axis linkage processing, especially four-axis and five-axis machine tools.

The above are only the preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and deformations should also be regarded as the protection scope of the present utility model.

Claims (7)

1. A workpiece drilling and positioning fixture for machining, which is characterized in that it includes: The lateral adjustment mechanism (1) includes a screw rod (12) rotatably connected to the side wall of the base (11), and a screw sleeve is provided in the outer ring of the screw rod (12). one(14); Longitudinal adjustment mechanism (2), the longitudinal adjustment mechanism (2) includes a fixed base (21), the bottom of the fixed base (21) is fixedly connected to the wire sleeve (14), and the side wall of the fixed base (21) The second screw rod (23) is rotatably connected, and the outer ring of the second screw rod (23) is rotated with a screw sleeve (25); Clamping mechanism (3), the clamping mechanism (3) includes a mounting seat (31), the bottom outer wall of the mounting seat (31) is fixedly connected to the two wire sleeves (25), and the mounting seat (31) Two racks (33) are slidingly connected to the inner wall of the bottom. A connecting rod (35) is welded to the top of the rack (33). The connecting rod (35) runs through the top of the mounting base (31) and is fixedly connected with a connecting rod (35). Splint(36). 2. A workpiece drilling and positioning fixture for machining according to claim 1, characterized in that one end of the screw rod (12) penetrates one side of the base (11) and is fixedly connected with a rocker. (13). 3. A workpiece drilling and positioning fixture for machining according to claim 1, characterized in that two guide rods (16) are fixedly connected to the side walls of the base (11), and the wire sleeve ( A sliding sleeve (15) is fixedly connected to the outer wall of 14), and the sliding sleeve (15) is slidably sleeved on the outer ring of the guide rod (16). 4. A workpiece drilling and positioning fixture for machining according to claim 1, characterized in that one end of the two screw rods (23) penetrates one side of the fixed base (21) and is fixedly connected to a rocker. Two(24). 5. A workpiece drilling and positioning fixture for machining according to claim 1, characterized in that the bottom inner wall of the fixed seat (21) is provided with a guide groove (22), and the second wire sleeve (25) A guide block (26) is fixedly connected to the outer wall, and the guide block (26) is slidingly connected to the guide groove (22). 6. A workpiece drilling and positioning fixture for machining according to claim 1, characterized in that a gear (32) is rotatably connected to the bottom inner wall of the mounting base (31), and the gear (32) is located on both sides. There are two racks (33) in the middle and meshing with them. A cylinder (34) is fixedly connected to the top inner wall of the mounting base (31). One of the racks (33) is fixedly connected to the output end of the cylinder (34). . 7. A workpiece drilling and positioning fixture for machining according to claim 1, characterized in that two sliding openings are provided on the top of the mounting seat (31), and the two connecting rods (35) are respectively Slidingly connected with two slide openings.