High-speed gun drill clamp

Abstract

The utility model relates to the technical field of circuit board production and processing, and discloses a high-speed gun drill clamp which comprises a bottom plate, a small-head pressing oil cylinder arranged at the top of the bottom plate, a clamp movable plate arranged at the top of the bottom plate and a small-head positioning block arranged at the top of the bottom plate. The small-head pressing oil cylinder, the clamp movable plate and the small-head positioning block are all connected with the bottom plate through bolts, a small-head pressing plate is installed on the side wall of the small-head pressing oil cylinder, the upper surface of the bottom plate is fixedly connected with a large-head side edge positioning plate, and a large-head pressing assembly is arranged at the top of the clamp movable plate. According to the modularized high-speed gun drill clamp, the modularized design is adopted, the problems that one set of part of high-speed gun drill clamps only aims at one kind of products, and when different connecting rods need to be produced, the whole device needs to be replaced are solved, and through the modularized mode, the replacement difficulty is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production and processing, in particular to a high-speed gun drill fixture. Background Art

[0002] The connecting rod is one of the main moving parts of the engine. Its stability and reliability are crucial to the overall quality of the engine. Therefore, a special fixture is required for connecting rod processing to ensure processing accuracy and efficiency. The high-speed gun drill fixture is used for connecting rod oil hole drilling process. It is installed on the corresponding machine tool workbench. After manual automatic loading, the fixture automatically clamps and positions, and then the machine tool performs processing. The positioning accuracy and clamping force meet production requirements.

[0003] Gun drill fixtures usually consist of jaws, chucks or clamps that can apply clamping force through mechanical handles. This clamping force is transmitted to the workpiece, clamping or fixing it in the fixture.

[0004] However, the existing gun drill fixture is only for one product. When manufacturers produce multiple types of connecting rods, they need to prepare multiple sets of fixtures, resulting in excessively high investment costs. In addition, when the machine tool produces one type of connecting rod, the fixture needs to be replaced, disassembled and re-adjusted, which wastes manpower and time and greatly reduces processing efficiency. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-speed gun drill fixture, which aims to improve the problem that some high-speed gun drill fixtures are only for one product and the entire equipment needs to be replaced when different connecting rods need to be produced.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed gun drill fixture, comprising a base plate, a small head clamping oil cylinder is arranged on the top of the base plate, a fixture movable plate is arranged on the top of the base plate, a small head positioning block is arranged on the top of the base plate, the small head clamping oil cylinder, the fixture movable plate and the small head positioning block are all connected to the base plate by bolts, a small head clamping plate is installed on the side wall of the small head clamping oil cylinder, a large head side positioning plate is fixedly connected to the upper surface of the base plate, a large head clamping assembly is arranged on the top of the fixture movable plate, and the large head The head clamping assembly includes a big head clamping cylinder, a big head pressure plate, a big head pressure block and a big head positioning block. The big head clamping cylinder is arranged on the upper surface of the clamp movable plate, and the big head clamping cylinder is connected to the clamp movable plate by bolts. One side of the big head pressure plate is fixedly connected to the side wall of the big head clamping cylinder, and the side wall of the big head pressure block is fixedly connected to the inside of the big head pressure plate. The big head positioning block is arranged on the upper surface of the clamp movable plate, and the big head positioning block is connected to the clamp movable plate by bolts. A small head positioning assembly is arranged on the top of the base plate.

[0007] Furthermore, the big head clamping assembly also includes a big head positioning pin seat, the side wall of the big head positioning pin seat is slidably connected to the inside of the big head positioning block, a conical piston is slidably connected to the inside of the big head positioning pin seat, a pressure head is fixedly connected to the inside of the conical piston, a spring is provided on the side wall of the pressure head, a baffle is fixedly connected to the inside of the big head positioning pin seat, and a steel ball is arranged inside the big head positioning pin seat.

[0008] Furthermore, one end of the spring is fixedly connected to the side wall of the tapered piston, and the other end of the spring is fixedly connected to the inside of the big-head positioning pin seat.

[0009] Furthermore, the side wall of the steel ball is slidably connected to the side wall of the conical piston, and the diameter of the steel ball is larger than the opening size of the baffle.

[0010] Furthermore, the small head positioning assembly includes a small head positioning block, a small head positioning pin and a small head drill sleeve. The small head positioning block is arranged on the upper surface of the base plate. The small head positioning block is connected to the base plate by bolts. The side wall of the small head positioning pin is fixedly connected to the inside of the small head positioning block, and the small head drill sleeve is arranged inside the small head positioning pin.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, by adopting a modular design, the problem that a set of some high-speed gun drill fixtures is only for one product, and when different connecting rods need to be produced, the entire equipment needs to be replaced. Through a modular approach, the difficulty of replacement is reduced and production efficiency is improved.

[0013] 2. In the utility model, the effect of automated production is achieved through the coordination among the small head clamping cylinder, the small head pressure plate, the big head side positioning plate, the fixture movable plate, the big head clamping cylinder, the big head pressure plate, the big head pressure block, the big head positioning block and the big head positioning pin seat, and the problem that some gun drill fixtures need to be manually adjusted by the staff is solved. The practicability of the equipment is improved through the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a high-speed gun drill fixture proposed by the utility model;

[0015] Figure 2 This is a floor structure diagram of a high-speed gun drill fixture proposed by the utility model;

[0016] Figure 3 This is a structural diagram of a clamp movable plate of a high-speed gun drill clamp proposed by the utility model;

[0017] Figure 4This is a structural diagram of a large head positioning pin seat of a high-speed gun drill fixture proposed by the utility model;

[0018] Figure 5 This is a structural diagram of a small head positioning block of a high-speed gun drill fixture proposed by the utility model.

[0019] Legend:

[0020] 1. Bottom plate; 2. Small head clamping cylinder; 3. Small head pressure plate; 4. Big head side positioning plate; 5. Clamp movable plate; 6. Big head clamping cylinder; 7. Big head pressure plate; 8. Big head pressure block; 9. Big head positioning block; 10. Big head positioning pin seat; 11. Pressure head; 12. Spring; 13. Conical piston; 14. Baffle; 15. Steel ball; 16. Small head positioning block; 17. Small head positioning pin; 18. Small head drill sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a high-speed gun drill fixture, including a base plate 1, a small head clamping cylinder 2 is arranged on the top of the base plate 1, a clamp movable plate 5 is arranged on the top of the base plate 1, a small head positioning block 16 is arranged on the top of the base plate 1, the small head clamping cylinder 2, the clamp movable plate 5 and the small head positioning block 16 are all connected to the base plate 1 by bolts, a small head clamping plate 3 is installed on the side wall of the small head clamping cylinder 2, and a large head side positioning plate 4 is fixedly connected to the upper surface of the base plate 1.

[0023] The base plate 1 is mainly used to install various modules. After welding, it is aged and finely processed. It has good overall strength and high precision. The small head clamping cylinder 2 is connected to the small head pressure plate 3 to rotate and clamp the workpiece. It is stable and reliable and has sufficient clamping force. The big head side positioning plate 4 is used to accurately adjust the position of the big head clamping assembly to ensure the accuracy of module replacement.

[0024] Reference Figure 3 - Figure 4A big head clamping assembly is arranged on the top of the clamp movable plate 5, and the big head clamping assembly includes a big head clamping cylinder 6, a big head pressure plate 7, a big head pressure block 8 and a big head positioning block 9. The big head clamping cylinder 6 is arranged on the upper surface of the clamp movable plate 5, and the big head clamping cylinder 6 is connected to the clamp movable plate 5 by bolts. One side of the big head pressure plate 7 is fixedly connected to the side wall of the big head clamping cylinder 6, and the side wall of the big head pressure block 8 is fixedly connected to the inside of the big head pressure plate 7. The big head positioning block 9 is arranged on the upper surface of the clamp movable plate 5, and the big head positioning block 9 is connected to the clamp movable plate 5 by bolts. One end of the spring 12 is fixedly connected to the side wall of the conical piston 13, and the other end of the spring 12 is fixedly connected to the inside of the big head positioning pin seat 10. The side wall of the steel ball 15 is slidably connected to the side wall of the conical piston 13, and the diameter of the steel ball 15 is larger than the opening size of the baffle 14.

[0025] The clamp movable plate 5 adopts a modular design. By removing the clamp movable plate 5, the entire big head clamping assembly can be replaced to achieve compatibility with different big head sizes. The clamp movable plate 5 has an internal oil circuit, which reduces the oil cylinder pipeline; the big head clamping oil cylinder 6 drives the big head pressure block 8 to achieve workpiece clamping by connecting the big head pressure plate 7; the big head positioning block 9 is used for supporting and positioning the bottom surface of the connecting rod big head, and by pressing the pressure head 11, it drives the tapered piston to press the steel ball 15 downward, and the tapered piston pushes the steel ball 15 to move horizontally to complete the positioning of the connecting rod big head. The baffle 14 has the function of limiting the steel ball 15 to prevent the steel ball 15 from falling out.

[0026] Reference Figure 5 A small head positioning assembly is provided on the top of the base plate 1, and the small head positioning assembly includes a small head positioning block 16, a small head positioning pin 17 and a small head drill sleeve 18. The small head positioning block 16 is provided on the upper surface of the base plate 1, and the small head positioning block 16 is connected to the base plate 1 by bolts. The side wall of the small head positioning pin 17 is fixedly connected to the inside of the small head positioning block 16, and the small head drill sleeve 18 is provided inside the small head positioning pin 17.

[0027] The small head positioning assembly is mainly used for supporting and positioning the small head end of the connecting rod; the small head positioning pin 17 is used for positioning the small head end of the connecting rod; the small head positioning block 16 is used for supporting the bottom surface of the small head of the connecting rod; the small head drill sleeve 18 has the characteristics of high rigidity and high hardness, and is used to guide the gun drill to ensure the accuracy of the gun drill drilling.

[0028] Working principle: When using the equipment, place the workpiece to be processed on the base plate 1, and pre-adjust the small head clamping cylinder 2, the clamp movable plate 5, and the large head side positioning plate 4 according to the size of the workpiece. The small head clamping cylinder 2 is started, driving the small head pressure plate 3 to move downward, preliminarily positioning and clamping one end of the workpiece, while the small head positioning block 16 and its components ensure the precise support and positioning of the small head end of the workpiece. Subsequently, the large head clamping cylinder 6 is activated, and the large head end of the workpiece is clamped by the large head pressure plate 7 and the large head pressure block 8, and the large head positioning block 9 provides additional support and positioning. The conical piston 13 controlled by the clamping head 11 moves downward, compresses and pushes the steel ball 15 laterally, completing the precise positioning of the connecting rod large end, and the baffle 14 prevents the steel ball 15 from falling off. After the workpiece is firmly clamped and positioned, the gun drill starts processing, and the small head drill sleeve 18 ensures the high precision of the gun drill processing. After the processing is completed, the pressure of the clamping cylinder is released to remove the workpiece. The modular design and internal oil circuit of the fixture make the adjustment and replacement of the workpiece fast and reliable, providing a guarantee for high-precision and high-efficiency gun drilling processing.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed gun drill fixture, comprising a base plate (1), characterized in that: A small head pressing cylinder (2) is arranged on the top of the base plate (1), a clamp movable plate (5) is arranged on the top of the base plate (1), and a small head positioning block (16) is arranged on the top of the base plate (1). The small head pressing cylinder (2), the clamp movable plate (5) and the small head positioning block (16) are all connected to the base plate (1) by bolts. A small head pressing plate (3) is installed on the side wall of the small head pressing cylinder (2). A large head side positioning plate (4) is fixedly connected to the upper surface of the base plate (1). A large head pressing assembly is arranged on the top of the clamp movable plate (5). The large head pressing assembly includes a large head pressing cylinder (6), a large head pressing plate and a plurality of large head pressing plates. (7), a big head pressure block (8) and a big head positioning block (9), the big head pressing cylinder (6) is arranged on the upper surface of the clamp movable plate (5), the big head pressing cylinder (6) is connected to the clamp movable plate (5) by bolts, one side of the big head pressing plate (7) is fixedly connected to the side wall of the big head pressing cylinder (6), the side wall of the big head pressure block (8) is fixedly connected to the inside of the big head pressing plate (7), the big head positioning block (9) is arranged on the upper surface of the clamp movable plate (5), the big head positioning block (9) is connected to the clamp movable plate (5) by bolts, and a small head positioning component is arranged on the top of the bottom plate (1).

2. A high-speed gun drilling fixture according to claim 1, characterized in that: The big head clamping assembly also includes a big head positioning pin seat (10), the side wall of the big head positioning pin seat (10) is slidably connected to the inside of the big head positioning block (9), a conical piston (13) is slidably connected to the inside of the big head positioning pin seat (10), a pressure head (11) is fixedly connected to the inside of the conical piston (13), a spring (12) is sleeved on the side wall of the pressure head (11), a baffle (14) is fixedly connected to the inside of the big head positioning pin seat (10), and a steel ball (15) is arranged inside the big head positioning pin seat (10).

3. A high-speed gun drilling fixture according to claim 2, characterized in that: One end of the spring (12) is fixedly connected to the side wall of the conical piston (13), and the other end of the spring (12) is fixedly connected to the inside of the large-head positioning pin seat (10).

4. A high-speed gun drilling fixture according to claim 3, characterized in that: The side wall of the steel ball (15) is slidably connected to the side wall of the conical piston (13), and the diameter of the steel ball (15) is larger than the opening size of the baffle (14).

5. The high-speed gun drilling fixture according to claim 1, characterized in that: The small head positioning assembly comprises a small head positioning block (16), a small head positioning pin (17) and a small head drill sleeve (18); the small head positioning block (16) is arranged on the upper surface of the base plate (1); the small head positioning block (16) and the base plate (1) are connected via bolts; a side wall of the small head positioning pin (17) is fixedly connected to the inside of the small head positioning block (16); and the small head drill sleeve (18) is arranged inside of the small head positioning pin (17).

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