Single-key groove broaching positioning device

Abstract

The utility model provides a single-key groove broaching positioning device, which belongs to the technical field of machining and comprises a positioning block, a main body of the positioning block is of a circular plate structure, a first fixing column is fixedly mounted on the upper end face of the positioning block, a workpiece is sleeved outside the first fixing column, and a second fixing column is fixedly mounted on the lower end face of the positioning block. And continuous grooves are formed in the surfaces of the positioning block, the first fixing column and the second fixing column. According to the groove broaching device, the first fixing column is fixedly installed on the upper end face of the positioning block, the groove is formed in the surface of the first fixing column, and the cutter is clamped in the groove, so that when the cutter conducts groove broaching on a workpiece, it can be guaranteed that the cutter can move linearly, and the groove broaching quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and more specifically relates to a single keyway broaching and positioning device. Background Art

[0002] Synchronous wheels are widely used in the machinery manufacturing industry. Keyways need to be opened during the processing of synchronous wheels. Broaching is a highly efficient method for opening the grooves, but the surface roughness of the keyway side is high, resulting in local scratches and even gnawing in severe cases.

[0003] Based on the above, the existing synchronous wheel single keyway broaching and positioning device still has the following two shortcomings when in use:

[0004] First, there is a lack of a limiting mechanism for the cutter. Due to the long length of the cutter and the high hardness of the synchronous wheel, the cutter is prone to deflection when broaching the synchronous wheel, resulting in a high surface roughness value on the side of the keyway.

[0005] Secondly, when fixing the workpiece, it is necessary to move the position of the positioning block according to the position of the workpiece and the cutter, but currently it is inconvenient for workers to move the positioning block. Utility Model Content

[0006] In order to solve the above technical problems at least to a certain extent, the utility model provides a single keyway broaching and positioning device.

[0007] The purpose and effect of the single keyway broaching and positioning device of the utility model are achieved by the following specific technical means: A single keyway broaching and positioning device comprises a bed;

[0008] The upper end surface of the bed is provided with two transverse slide grooves, the middle of the upper end surface of the bed is provided with a plug hole, and a fixing plate is fixedly installed inside the bed;

[0009] The positioning block has a circular plate-shaped body, a first fixing column is fixedly mounted on the upper end surface of the positioning block, a workpiece is sleeved on the outside of the first fixing column, and a second fixing column is fixedly mounted on the lower end surface of the positioning block. Continuous grooves are formed on the surfaces of the positioning block, the first fixing column, and the second fixing column;

[0010] Fixed lug plates, wherein the fixed lug plates are symmetrically provided in two groups and are fixedly mounted on the outer end surface of the positioning block;

[0011] A fixing block, which is fixedly mounted at the middle position of the upper end surface of the fixing ear plate, and a connecting groove is provided inside the fixing block;

[0012] A hydraulic cylinder is fixedly mounted on the lower end surface of the fixed plate, and a cutter is mounted on the front end of the hydraulic cylinder, and the cutter is clamped in a groove on the surface of the positioning block;

[0013] The fixing rod is symmetrically provided with two groups. The upper end surface of the fixing rod is fixedly installed with a fixing horizontal plate. The surface of the fixing horizontal plate is threadedly connected with an adjusting screw, and the adjusting screw is located above the positioning block.

[0014] Furthermore, the upper end portion of the second fixing column is divided into a rectangular plate structure, the upper end portion of the second fixing column is clamped in the socket on the surface of the bed, and the outer end surface of the second fixing column is fitted with the inner end surface of the socket.

[0015] Furthermore, a connecting block with a circular plate structure is fixedly mounted on the lower end surface of the fixing rod, and the connecting block is rotatably connected to a connecting groove inside the fixing block.

[0016] Furthermore, a fastening block is slidably mounted in the transverse sliding groove on the surface of the top plate of the bed, and a fastening screw is fixedly mounted on the upper end surface of the fastening block.

[0017] Furthermore, two connection holes are provided on the surface of the fixed ear plate, the fastening screw at the upper end of the fastening block is clamped in the connection hole, and a nut is connected to the surface of the fastening screw.

[0018] Furthermore, a knob with a hexagonal stud structure is fixedly installed on the top end of the adjusting screw, and a pressure plate is fixedly installed on the lower end surface of the adjusting screw.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the utility model, a fastening screw is fixedly installed on the upper end surface of the fastening block, and a fixing ear plate is respectively installed at both ends of the positioning block. Two connecting holes are provided on the surface of the fixing ear plate, and the fastening screw is clamped inside the connecting hole. The worker can move the front and rear position of the positioning block to make the cutter fit tightly with the workpiece, and then tighten the nut on the surface of the fastening screw to fix the positioning block to the upper end surface of the bed.

[0021] In addition, the connecting block at the lower end of the fixing rod is rotatably connected to the connecting groove inside the fixing block, so that workers can flexibly adjust the position of the fixed horizontal plate, which is convenient for fitting the workpiece onto the outside of the first fixed column 201. When the adjusting screw is located above the workpiece, the pressure plate will move downward together with the adjusting screw through the threaded connection between the adjusting screw and the fixed horizontal plate to fix the workpiece.

[0022] In addition, a first fixed column is fixedly installed on the upper end face of the positioning block, and a groove is provided on the surface of the first fixed column. The cutter is clamped in the groove, so that the cutter can ensure linear motion when grooving the workpiece, thereby ensuring the quality of the grooving. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall device structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the internal structure of the bed of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the positioning block, the first fixing column and the second fixing column of the utility model.

[0026] Figure 4 It is a schematic structural diagram of the positioning block and the fixing ear plate of the utility model.

[0027] Figure 5 It is a schematic diagram of the positioning block and bed structure of the utility model.

[0028] Figure 6 It is a front structural schematic diagram of the hydraulic cylinder and the cutter of the utility model.

[0029] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0030] 1. Bed; 101. Horizontal slide; 102. Socket; 103. Fixed plate; 2. Positioning block; 201. First fixed column; 202. Second fixed column; 3. Fixed ear plate; 301. Connecting hole; 4. Fixed block; 401. Connecting groove; 5. Hydraulic cylinder; 501. Cutter; 6. Fixed rod; 601. Connecting block; 602. Fixed horizontal plate; 7. Adjusting screw; 701. Pressing plate; 8. Fastening block; 801. Fastening screw; 9. Workpiece. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0032] Example 1:

[0033] like Figures 1 to 6 As shown:

[0034] The single keyway broaching and positioning device provided in this embodiment includes a bed 1, a positioning block 2, a fixed ear plate 3, a fixed block 4, a hydraulic cylinder 5 and a fixed rod 6. Two transverse slide grooves 101 are provided on the upper end surface of the bed 1, a socket 102 is provided in the middle of the upper end surface of the bed 1, and a fixed plate 103 is fixedly installed inside the bed 1.

[0035] The main body of the positioning block 2 is a circular plate structure. The upper end face of the positioning block 2 is fixedly installed with a first fixed column 201, and the outside of the first fixed column 201 is sleeved with a workpiece 9. The lower end face of the positioning block 2 is fixedly installed with a second fixed column 202. The surfaces of the positioning block 2, the first fixed column 201 and the second fixed column 202 are provided with a continuous groove. The first fixed column 201 is fixedly installed on the upper end face of the positioning block 2, and the surface of the first fixed column 201 is provided with a groove. The cutter 501 is clamped in the groove, so that when the cutter 501 is grooving the workpiece 9, it can ensure that the cutter 501 can ensure linear motion, thereby ensuring the quality of the grooving.

[0036] Two groups of fixed ear plates 3 are symmetrically provided, and the fixed ear plates 3 are fixedly installed on the outer end surface of the positioning block 2; the fixed block 4 is fixedly installed in the middle position of the upper end surface of the fixed ear plate 3, and a connecting groove 401 is opened inside the fixed block 4; the hydraulic cylinder 5 is fixedly installed on the lower end surface of the fixed plate 103, and a cutter 501 is installed at the front end of the hydraulic cylinder 5, and the cutter 501 is clamped in the groove on the surface of the positioning block 2; the fixed rod 6 is symmetrically provided with two groups, and a fixed cross plate 602 is fixedly installed on the upper end surface of the fixed rod 6, and the surface of the fixed cross plate 602 is threadedly connected with an adjusting screw 7, and the adjusting screw 7 is located above the positioning block 2.

[0037] Among them, the upper end part of the second fixed column 202 is divided into a rectangular plate structure. The upper end part of the second fixed column 202 is clamped in the socket 102 on the surface of the bed 1. The outer end surface of the second fixed column 202 fits with the inner end surface of the socket 102, which can ensure that the positioning block 2 will not swing left and right when moving forward and backward.

[0038] Among them, a connecting block 601 with a circular plate structure is fixedly installed on the lower end surface of the fixing rod 6. The connecting block 601 is rotatably connected to the connecting groove 401 inside the fixing block 4, making it convenient for workers to place the workpiece 9 outside the first fixing column 201.

[0039] Among them, a fastening block 8 is slidably mounted in the horizontal slide groove 101 on the surface of the top plate of the bed 1, and a fastening screw 801 is fixedly mounted on the upper end surface of the fastening block 8. Two connecting holes 301 are provided on the surface of the fixed ear plate 3. The fastening screw 801 at the upper end of the fastening block 8 is clamped in the inside of the connecting hole 301. A nut is connected to the surface of the fastening screw 801. By loosening the nut on the surface of the fastening screw 801, the front and rear position of the positioning block 2 can be adjusted. After tightening the nut on the surface of the fastening screw 801, the positioning block 2 can be fixed above the bed 1.

[0040] Among them, a knob with a hexagonal stud structure is fixedly installed on the top of the adjusting screw 7, and a pressure plate 701 is fixedly installed on the lower end surface of the adjusting screw 7. When the adjusting screw 7 is rotated, when the pressure plate 701 is in close contact with the workpiece 9, the workpiece 9 can be fixed.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In the present invention, the hydraulic cylinder 5 can drive the cutter 501 to the highest position, and then the workpiece 9 is sleeved on the outside of the first fixed column 201. A horizontal slide 101 is provided on the top surface of the bed 1. A fastening block 8 is slidably mounted inside the horizontal slide 101. A fastening screw 801 is fixedly mounted on the upper end surface of the fastening block 8. A fixing ear plate 3 is respectively installed at both ends of the positioning block 2. Two connecting holes 301 are provided on the surface of the fixing ear plate 3. The fastening screw 801 is clamped inside the connecting hole 301. The worker can move the front and rear positions of the positioning block 2 to make the cutter 501 fit tightly with the workpiece 9, and then tighten the nut on the surface of the fastening screw 801 to fix the positioning block 2 on the upper end surface of the bed 1, and the connecting block 601 at the lower end of the fixing rod 6 is rotatably connected to the The connecting groove 401 inside the fixed block 4 allows the worker to rotate the fixed cross plate 602 to allow the adjusting screw 7 to be located above the workpiece 9, and then rotate the adjusting screw 7. Through the setting of the threaded connection between the adjusting screw 7 and the fixed cross plate 602, the pressure plate 701 will move downward together with the adjusting screw 7 to fix the workpiece 9. At this time, the worker can start the hydraulic cylinder 5, and the hydraulic cylinder 5 can drive the cutter 501 to move downward to groove the inner end of the workpiece 9. The first fixed column 201 is fixedly installed on the upper end face of the positioning block 2. The surface of the first fixed column 201 is provided with a groove, and the cutter 501 is clamped in the groove. When the cutter 501 grooves the workpiece 9, it can ensure that the cutter 501 can ensure linear motion, thereby ensuring the quality of the groove.

Claims

1. A single keyway broaching and positioning device, characterized in that: include: A bed (1), wherein the upper end surface of the bed (1) is provided with two transverse slide grooves (101), a socket (102) is provided in the middle of the upper end surface of the bed (1), and a fixing plate (103) is fixedly installed inside the bed (1); a positioning block (2), wherein the upper end surface of the positioning block (2) is fixedly installed with a first fixing column (201), the outer surface of the first fixing column (201) is sleeved with a workpiece (9), and the lower end surface of the positioning block (2) is fixedly installed with a second fixing column (202), and the surfaces of the positioning block (2), the first fixing column (201) and the second fixing column (202) are provided with continuous grooves; a fixing ear plate (3), wherein the fixing ear plate (3) is symmetrically provided with two groups, and the fixing ear plate (3) is fixedly installed on the positioning block. (2) outer end surface; a fixed block (4), the fixed block (4) is fixedly mounted at the middle position of the upper end surface of the fixed ear plate (3), and a connecting groove (401) is provided inside the fixed block (4); a hydraulic cylinder (5), the hydraulic cylinder (5) is fixedly mounted on the lower end surface of the fixed plate (103), a cutter (501) is installed at the front end of the hydraulic cylinder (5), and the cutter (501) is clamped in the groove on the surface of the positioning block (2); a fixed rod (6), the fixed rod (6) is symmetrically provided with two groups, the upper end surface of the fixed rod (6) is fixedly mounted with a fixed transverse plate (602), the surface of the fixed transverse plate (602) is threadedly connected with an adjusting screw (7), and the adjusting screw (7) is located above the positioning block (2).

2. The single keyway broaching and positioning device according to claim 1, wherein: The upper end portion of the second fixing column (202) is divided into a rectangular plate-shaped structure. The upper end portion of the second fixing column (202) is clamped in the socket (102) on the surface of the bed (1), and the outer end surface of the second fixing column (202) is fitted with the inner end surface of the socket (102).

3. The single keyway broaching and positioning device according to claim 1, wherein: A connecting block (601) with a circular plate structure is fixedly mounted on the lower end surface of the fixing rod (6), and the connecting block (601) is rotatably connected to the connecting groove (401) inside the fixing block (4).

4. The single keyway broaching and positioning device according to claim 1, wherein: A fastening block (8) is slidably mounted in a transverse sliding groove (101) on the top plate surface of the bed (1), and a fastening screw (801) is fixedly mounted on the upper end surface of the fastening block (8).

5. The single keyway broaching and positioning device according to claim 1, wherein: Two connection holes (301) are provided on the surface of the fixed ear plate (3); a fastening screw (801) at the upper end of the fastening block (8) is clamped inside the connection hole (301); and a nut is connected to the surface of the fastening screw (801).

6. The single keyway broaching and positioning device according to claim 1, wherein: A knob with a hexagonal stud structure is fixedly mounted on the top end of the adjusting screw (7), and a pressing plate (701) is fixedly mounted on the lower end surface of the adjusting screw (7).

Images