Gear oil pump body drilling clamp

Abstract

The utility model relates to a machining clamp, in particular to a gear oil pump body drilling clamp. A gear oil pump body drilling clamp comprises a drill plate, an upper positioning block, a lower positioning block, a base and a mandrel. The drill plate and the base are a rectangular cover plate and a rectangular workbench respectively, mounting ports are formed in the middles of the drill plate and the base respectively, and connecting ports and connecting blind holes are at least formed in the left sides and the right sides of the mounting ports respectively. The upper positioning block and the lower positioning block are divided into two stepped layers, mounting ports are formed in the middle positions of the upper positioning block and the lower positioning block, and the upper positioning block is provided with a blind hole and is fixedly connected with the drill plate connecting port through the blind hole; the lower positioning block is provided with a mounting hole and is fixedly connected with the base connecting blind hole through the mounting hole; the mandrel is a cylindrical shaft, threads are arranged at the two ends of the shaft, and the whole clamp is connected in series and fixed by penetrating through installation openings of all components. Due to the adoption of the technical scheme, the positioning block with certain matching is designed to assist in positioning, so that the whole fixture is more convenient and efficient in clamping and processing, the processing quality is ensured, the processing production efficiency is improved, the complexity of dismounting and mounting of the fixture is simplified through the combined design of the positioning block and the drill plate, and the production efficiency is improved. And the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a mechanical processing fixture, in particular to a gear oil pump body drilling fixture. Background Art

[0002] In the machining, inspection, assembly, welding and heat treatment processes of mechanical manufacturing, a large number of fixtures are used to install the processing objects so that they occupy the correct position to ensure the processing quality of parts and products and improve production efficiency.

[0003] There is currently no special fixture for machining the holes in the gear oil pump body. In order to make the machining convenient and efficient, ensure the machining quality, and improve the machining yield, a special fixture needs to be designed. Summary of the Invention

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a gear oil pump body drilling fixture, which makes clamping convenient and quick, and improves work efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A gear oil pump body drilling fixture, the fixture comprising: a drilling template, an upper positioning block, a lower positioning block, a base and a spindle;

[0007] The drilling template is a rectangular cover plate with a mounting opening in the middle and connecting openings at least on the left and right sides of the mounting opening, which are fixedly connected to the upper positioning block through the connecting openings;

[0008] The upper positioning block is divided into two stepped layers, with a mounting opening in the middle and blind holes in the small surface layer at the corresponding connection opening, which are fixedly connected to the drilling template through the blind holes;

[0009] The lower positioning block is divided into two stepped layers, with a mounting opening in the middle. The large surface layer is provided with mounting holes at the corresponding connection blind holes, and is fixedly connected to the base through the mounting holes.

[0010] The base is a rectangular workbench with a mounting opening in the middle and connecting blind holes at least on the left and right sides of the mounting opening, which are fixedly connected to the lower positioning block through the connecting blind holes;

[0011] The spindle is a cylindrical shaft with threads on both ends of the shaft, and an upper nut and a lower nut are respectively provided, which are connected and fixed in series by passing through the installation ports of each component.

[0012] Preferably, an anti-wear pad is provided between the base and the pump body. The anti-wear pad is an elliptical piece placed flat between the pump body and the base to protect the base.

[0013] Preferably, an open washer is provided between the drilling template and the upper nut, the open washer is provided with a U-shaped groove, and is inserted on the central shaft to strengthen the connection strength of the upper nut.

[0014] Preferably, a flat washer is provided between the base and the lower nut. The flat washer is a circular ring sheet and is sleeved on the central shaft to strengthen the connection strength of the lower nut.

[0015] Preferably, a slot is provided at the bottom end of the drilling template, and the upper positioning block is accurately positioned by inserting the small surface layer of the upper positioning block into the slot.

[0016] Preferably, the drilling template is further provided with six drill holes, which are symmetrically arranged on the left and right sides of the mounting opening. Drill sleeves are provided in the six drill holes for protecting the drilling template and positioning the tool.

[0017] Preferably, a groove is provided on the top of the base, and the lower positioning block can be accurately positioned by inserting the small surface layer of the lower positioning block into the groove.

[0018] Preferably, both layers of the upper positioning block and the lower positioning block are elliptical in shape, a chamfer is provided on the end face contour line of the large surface layer away from the small surface layer, and the arc-shaped side surface of the large surface layer is used to position the pump body.

[0019] Preferably, two cover-lifting screws are provided between the base and the anti-wear pad, symmetrically arranged at the left and right ends, and inserted into the anti-wear pad from the lower end of the base for ejecting the anti-wear pad and the pump body after processing is completed.

[0020] Preferably, the drilling template and the upper positioning block, as well as the lower positioning block and the base are fixedly connected by screws.

[0021] The utility model adopts the above-mentioned technical solution, and assists in positioning by designing a positioning block with a certain fit, so that the clamping and processing of the overall fixture are more convenient and efficient, and the processing quality is guaranteed, and the processing production efficiency is improved. The combination design of the positioning block and the drilling template simplifies the complexity of the fixture disassembly and assembly, and improves the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a partial planed front view of the gear oil pump body drilling fixture.

[0023] Figure 2 Top view of the gear oil pump body drilling fixture.

[0024] Figure 3 Top view of the positioning block.

[0025] Figure 4 Front view of the positioning block.

[0026] Figure 5 Front view of the pump body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] It should also be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] The following is a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings.

[0031] like Figure 1 A gear oil pump body drilling fixture is shown, which includes a drilling template 1, an upper positioning block 2, a lower positioning block 3, a base 4 and a spindle 5.

[0032] like Figure 1 and 2 As shown, the drilling template 1 is a rectangular cover plate with a mounting opening in the middle position, and connecting openings 12 are provided on the left and right sides of the mounting opening, which is fixedly connected to the upper positioning block 2 through the connecting openings 12; six drill holes 13 are also provided on the drilling template 1, which are symmetrically arranged on the left and right sides of the mounting opening, and a drill sleeve 15 is provided in each drill hole 13 for protecting the drilling template 1 and the positioning tool. A card slot 14 is provided at the bottom end of the drilling template 1, and the card slot 14 is elliptical. The upper positioning block 2 is accurately positioned by inserting the small surface layer of the upper positioning block 2 into the card slot 14, and the upper positioning block 2 is fixedly connected through the connecting openings 12 on the left and right sides of the mounting opening and fixed by screws.

[0033] like Figure 1 、 34, the upper positioning block 2 and the lower positioning block 3 are divided into two stepped layers, with a mounting port provided in the middle. Both layers are elliptical in shape, and a chamfer is provided on the end face contour line of the large surface layer away from the small surface layer. The pump body is positioned with the arc-shaped side of the large surface layer. The small surface layer of the upper positioning block 2 is provided with a blind hole 21 at the corresponding connection port 12, and is fixedly connected to the drilling template 1 through the blind hole 21; the large surface layer of the lower positioning block 3 is provided with a mounting hole 31 at the corresponding connection blind hole 21, and is fixedly connected to the base 4 through the mounting hole 31.

[0034] like Figure 1 As shown, the base 4 is a rectangular workbench with a mounting opening in the middle, and connecting blind holes 21 are provided on at least the left and right sides of the mounting opening, which are fixedly connected to the lower positioning block 3 through the connecting blind holes 21. In addition, a groove 42 is provided at the top of the base 4, and the lower positioning block 3 is accurately positioned by inserting the small surface layer of the lower positioning block 3 into the groove 42. At the same time, two cover screws 41 are provided between the base 4 and the anti-wear pad 6, which are symmetrically arranged at the left and right ends, and are inserted into the anti-wear pad 6 from the lower end of the base 4, so as to be used to eject the anti-wear pad 6 and the pump body after processing is completed.

[0035] like Figure 1 As shown, the spindle 5 is a cylindrical shaft with threads provided at both ends of the shaft. The entire fixture is fixed in series by passing through the mounting ports of each component, and the entire fixture is fixed at both ends by adding upper nuts 7 and lower nuts 71. In addition, an open washer 8 is provided between the drilling template 1 and the upper nut 7. The open washer 8 is provided with a U-shaped open groove and is inserted on the spindle 5 to strengthen the connection strength of the upper nut 7. At the same time, a flat washer 9 is provided between the base 4 and the lower nut 71. The flat washer 9 is a circular ring sheet and is sleeved on the spindle 5 to strengthen the connection strength of the lower nut 71.

[0036] like Figure 1 and 5 As shown, the upper end surface of the anti-wear pad 6 and the lower end surface of the drilling template 1 are pressed against the front and rear end surfaces of the pump body to clamp the pump body, and then the curved side surfaces of the large surface layers of the upper positioning block 2 and the lower positioning block 3 are pressed against the inner aperture 100 of the pump body to accurately position the pump body, and finally, the six holes 101 on the front and rear end surfaces of the pump body are machined using a tool by cooperating with the drill hole 13 on the drilling template 1 and the drill sleeve 15.

[0037] The above is a description of the embodiments of the present invention. The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gear oil pump body drilling fixture, characterized in that: The fixture comprises: a drilling template (1), an upper positioning block (2), a lower positioning block (3), a base (4) and a spindle (5); The drilling template (1) is a rectangular cover plate with a mounting opening provided in the middle, and connecting openings (12) provided at least on the left and right sides of the mounting opening, and is fixedly connected to the upper positioning block (2) through the connecting openings (12); The upper positioning block (2) is divided into two stepped layers, with a mounting opening provided in the middle, and a blind hole (21) provided at the corresponding connection opening (12) on the small surface layer, which is fixedly connected to the drilling template (1) through the blind hole (21); The lower positioning block (3) is divided into two stepped layers, a mounting opening is provided in the middle position, and a mounting hole (31) is provided at the large surface layer corresponding to the connecting blind hole (21), and is fixedly connected to the base (4) through the mounting hole (31); The base (4) is a rectangular workbench with a mounting opening in the middle, and connecting blind holes (21) are provided at least on the left and right sides of the mounting opening, and is fixedly connected to the lower positioning block (3) through the connecting blind holes (21); The spindle (5) is a cylindrical shaft with threads provided at both ends thereof. An upper nut (7) and a lower nut (71) are provided respectively, and the entire fixture is fixed in series by passing through the installation openings of the various components.

2. The gear oil pump body drilling fixture according to claim 1, characterized in that: An anti-wear pad (6) is provided between the pump body and the base (4). The anti-wear pad (6) is an elliptical sheet and is arranged flat between the pump body and the base (4) for protecting the base (4).

3. The gear oil pump body drilling fixture according to claim 1, characterized in that: An open washer (8) is provided between the drilling template (1) and the upper nut (7), and the open washer (8) is provided with a U-shaped open groove and is inserted on the spindle (5) to strengthen the connection strength of the upper nut (7).

4. The gear oil pump body drilling fixture according to claim 1, characterized in that: A flat washer (9) is provided between the base (4) and the lower nut (71). The flat washer (9) is a circular ring sheet and is sleeved on the spindle (5) to strengthen the connection strength of the lower nut (71).

5. The gear oil pump body drilling fixture according to claim 1, characterized in that: The drilling template (1) is also provided with six drilling holes (13), which are symmetrically arranged on the left and right sides of the installation opening. Drill sleeves (15) are provided in the six drilling holes (13) for protecting the drilling template (1) and positioning the tool.

6. The gear oil pump body drilling fixture according to claim 5, characterized in that: The bottom end of the drilling template (1) is provided with a slot (14) which is elliptical in shape. The upper positioning block (2) is accurately positioned by inserting the small surface layer of the upper positioning block (2) into the slot (14).

7. The gear oil pump body drilling fixture according to claim 1, characterized in that: The upper positioning block (2) and the lower positioning block (3) are both elliptical in shape. A chamfer is provided on the end face contour line of the large surface layer away from the small surface layer, and the pump body is positioned by the arc side surface of the large surface layer.

8. The gear oil pump body drilling fixture according to claim 1, characterized in that: Two cover screws (41) are provided between the base (4) and the anti-wear pad (6), symmetrically arranged at the left and right ends, and inserted into the anti-wear pad (6) from the lower end of the base (4) for ejecting the anti-wear pad (6) and the pump body after processing is completed.

9. The gear oil pump body drilling fixture according to claim 8, characterized in that: A groove (42) is provided at the top of the base (4), and the lower positioning block (3) is accurately positioned by inserting the small surface layer of the lower positioning block (3) into the groove (42).

10. The gear oil pump body drilling fixture according to claim 1, characterized in that: The drilling template (1) and the upper positioning block (2), as well as the lower positioning block (3) and the base (4) are all fixedly connected by screws.

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