Surface contact positioning angle head

Abstract

The utility model discloses a surface contact positioning angle head, which relates to the field of machinery, and comprises an angle head main body, a connecting clamp and a positioning ring, one end of the positioning ring close to the bulge of the connecting clamp is provided with a limiting groove, and the top of the bulge of the connecting clamp is fixedly provided with a positioning pin. Two symmetrical inclined planes are arranged on the two sides of the top of the positioning pin, the top of the positioning pin abuts against a positioning block locked on a machine tool, a groove is formed in the bottom of the positioning block, and the groove is connected with the inclined planes arranged on the two sides of the positioning pin in an attached and clamped mode. Two equal-angle slopes are machined in the contact area of the positioning pin and the positioning block, traditional line contact is replaced by surface contact positioning of the positioning pin and the positioning block, gaps can be counteracted, the contact area is increased, abrasion of the positioning pin and the positioning block is reduced, cutting vibration marks of a cutter are reduced, and the machining quality of the angle head is improved.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a surface contact positioning angle head. Background Art

[0002] Angle head is a machine tool accessory. After the machine tool is equipped with an angle head, the tool rotation centerline can be angled with the spindle rotation centerline to process the workpiece. Using an angle head can increase the processing range and adaptability of the machine tool without changing the structure of the machine tool, making some processing that is difficult to complete with traditional methods possible, reducing repeated clamping of the workpiece, and improving processing accuracy and efficiency.

[0003] At present, the positioning method of angle heads on the market is the inclined contact between the conical pin and the positioning block, and the contact method is linear contact. The angle head switches back and forth between the tool magazine and the spindle, and the positioning block and the positioning pin are easy to wear, resulting in positioning gaps, which affects the processing quality of the angle head.

[0004] The outer surface uses a positioning pin to machine two equal-angle bevels in the contact area with the positioning block. The contact is in the form of surface contact, which increases the contact area, improves the positioning strength, and reduces the risk of wear. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a surface contact positioning angle head to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a surface contact positioning angle head, comprising an angle head body, a connecting clamp is detachably installed in the middle of the angle head body, a positioning ring is sleeved on the top surface of the connecting clamp of the angle head body, a limiting groove is provided at one end of the positioning ring close to the protrusion of the connecting clamp, a positioning pin is fixed on the top of the protrusion of the connecting clamp, two symmetrical inclined surfaces are provided on both sides of the top of the positioning pin, the top of the positioning pin is abutted against a positioning block locked to a machine tool, a groove is provided at the bottom of the positioning block, and the groove is fitted and clamped with the inclined surfaces provided on both sides of the positioning pin, a positioning key is elastically sleeved on the outer surface of the positioning pin, and the positioning key corresponds to the limiting groove.

[0007] Preferably, the positioning block comprises a T-shaped block, a connection hole is provided on both sides of the top of the T-shaped block, a trapezoidal groove which is narrow at the top and wide at the bottom is provided at the bottom of the T-shaped block, and the side angle of the trapezoidal groove is equal to the inclination angle of the inclined surface.

[0008] Preferably, the positioning key includes a sleeve shaft, a positioning protrusion, a spring, and a socket. The sleeve shaft is movably sleeved on the positioning pin. A positioning protrusion is welded on the bottom of one end of the sleeve shaft close to the positioning ring. A spring is embedded and installed at the bottom of the sleeve shaft, and the spring is sleeved on the outer surface of the positioning pin and abuts against the top of the connecting clamp. When the sleeve shaft moves upward under the elastic potential energy of the spring, it abuts against the bottom of the positioning block.

[0009] Preferably, a plug hole is provided in the middle of the positioning protrusion, and a protrusion adapted to the limiting groove is provided at the end of the positioning protrusion.

[0010] Preferably, a limiting rod is detachably mounted on the top surface of the connecting clamp between the positioning ring and the positioning pin, and the top of the limiting rod passes through the insertion hole and extends to the top of the insertion hole.

[0011] Preferably, one end of the connecting clamp close to the positioning pin is assembled and connected with two fastening screws.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges a locating pin to process two equi-angle inclined surfaces in the contact area with the locating block, and the locating pin and the locating block are positioned by surface contact instead of traditional line contact, which can offset the gap, increase the contact area, and reduce the wear of the locating pin and the locating block, thereby reducing the tool cutting vibration marks and further improving the processing quality of the angle head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the positioning pin installation structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the positioning block structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the positioning key structure of the utility model.

[0018] The accompanying drawings are marked as follows: 1. Angle head body; 2. Connecting clamp; 3. Positioning ring; 4. Limiting groove; 5. Positioning pin; 51. Inclined surface; 6. Positioning block; 61. T-shaped block; 62. Trapezoidal groove; 7. Positioning key; 71. Sleeve shaft; 72. Positioning protrusion; 73. Spring; 74. Socket; 8. Limiting rod. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0020] The utility model provides a surface contact positioning angle head, such as Figure 1-3 As shown, it includes an angle head body 1, a connecting clamp 2 is detachably installed in the middle of the angle head body 1, a positioning ring 3 is sleeved on the top surface of the connecting clamp 2 of the angle head body 1, a limiting groove 4 is provided at one end of the positioning ring 3 close to the protrusion of the connecting clamp 2, a positioning pin 5 is fixed to the top of the protrusion of the connecting clamp 2, two symmetrical inclined surfaces 51 are provided on both sides of the top of the positioning pin 5, a positioning block 6 locked to the machine tool is abutted on the top of the positioning pin 5, a groove is provided at the bottom of the positioning block 6, and the groove is fitted and clamped with the inclined surfaces 51 provided on both sides of the positioning pin 5, a positioning key 7 is elastically sleeved on the outer surface of the positioning pin 5, and the positioning key 7 corresponds to the limiting groove 4.

[0021] The positioning pin 5 is arranged to have two equi-angled inclined surfaces in the contact area with the positioning block 6. The positioning pin 5 and the positioning block 6 are positioned by surface contact instead of traditional line contact, which can offset the gap, increase the contact area, and reduce the wear of the positioning pin 5 and the positioning block 6, thereby reducing the tool cutting vibration marks and improving the processing quality of the angle head.

[0022] As one of the embodiments, Figure 3 As shown, the positioning block 6 includes a T-shaped block 61, and a connecting hole is opened on both sides of the top of the T-shaped block 61. A trapezoidal groove 62 which is narrow at the top and wide at the bottom is opened at the bottom of the T-shaped block 61, and the side angle of the trapezoidal groove 62 is equal to the inclination angle of the inclined surface 52.

[0023] As one of the embodiments, Figure 4 As shown, the positioning key 7 includes a sleeve shaft 71, a positioning protrusion 72, a spring 73, and a socket 74. The sleeve shaft 71 is movably sleeved on the positioning pin 5. A positioning protrusion 72 is welded to the bottom of one end of the sleeve shaft 71 close to the positioning ring 3. A spring 73 is embedded and installed at the bottom of the sleeve shaft 71, and the spring 73 is sleeved on the outer surface of the positioning pin 5 and abuts against the top of the connecting clamp 2. When the sleeve shaft 71 moves upward under the elastic potential energy of the spring 73, it abuts against the bottom of the positioning block 6.

[0024] Furthermore, a socket 74 is provided in the middle of the positioning protrusion 72, and a protrusion that matches the limiting groove 4 is provided at the end of the positioning protrusion 72. A limiting rod 8 is detachably installed on the top surface of the connecting clamp 2 between the positioning ring 3 and the positioning pin 5, and the top of the limiting rod 8 passes through the socket 74 and extends to the top of the socket 74. The limiting rod 8 cooperates with the socket 74 to limit the positioning key 7 in the up and down directions, avoiding the left and right position deviation of the positioning key 7 on the positioning pin 5, and ensuring that the positioning key 7 is always aligned with the limiting groove 4 opened on the positioning ring 3.

[0025] Furthermore, one end of the connecting clamp 2 close to the locating pin 5 is assembled and connected with two fastening screws, and the two fastening screws are used to fasten the two connecting clamps 2 so that the two connecting clamps 2 hold the locating pin 5 tightly, thereby improving the fixing effect of the locating pin 5 and preventing the locating pin 5 from shaking.

[0026] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A surface contact positioning angle head, comprising an angle head body (1), characterized in that: A connecting clamp (2) is detachably mounted in the middle of the angle head body (1); a positioning ring (3) is sleeved on the top surface of the connecting clamp (2) of the angle head body (1); a limiting groove (4) is provided at one end of the positioning ring (3) close to the protrusion of the connecting clamp (2); a positioning pin (5) is fixed to the top of the protrusion of the connecting clamp (2); two symmetrical inclined surfaces (51) are provided on both sides of the top of the positioning pin (5); a positioning block (6) locked to the machine tool is abutted against the top of the positioning pin (5); a groove is provided at the bottom of the positioning block (6), and the groove is fitted and clamped with the inclined surfaces (51) provided on both sides of the positioning pin (5); a positioning key (7) is elastically sleeved on the outer surface of the positioning pin (5), and the positioning key (7) corresponds to the limiting groove (4).

2. The surface contact positioning angle head according to claim 1, characterized in that: The positioning block (6) comprises a T-shaped block (61), a connection hole is provided on both sides of the top of the T-shaped block (61), a trapezoidal groove (62) which is narrow at the top and wide at the bottom is provided at the bottom of the T-shaped block (61), and the side angle of the trapezoidal groove (62) is equal to the inclination angle of the inclined surface.

3. The surface contact positioning angle head according to claim 1, characterized in that: The positioning key (7) comprises a sleeve shaft (71), a positioning protrusion (72), a spring (73), and a socket (74). The sleeve shaft (71) is movably sleeved on the positioning pin (5). A positioning protrusion (72) is welded to the bottom of one end of the sleeve shaft (71) close to the positioning ring (3). A spring (73) is embedded and installed at the bottom of the sleeve shaft (71). The spring (73) is sleeved on the outer surface of the positioning pin (5) and abuts against the top of the connecting clamp (2). When the sleeve shaft (71) moves upward under the elastic potential energy of the spring (73), it abuts against the bottom of the positioning block (6).

4. The surface contact positioning angle head according to claim 3, characterized in that: A plug hole (74) is provided in the middle of the positioning protrusion (72), and a protrusion matching the limiting groove (4) is provided at the end of the positioning protrusion (72).

5. The surface contact positioning angle head according to claim 1, characterized in that: A limiting rod (8) is detachably mounted on the top surface of the connecting clamp (2) between the positioning ring (3) and the positioning pin (5), and the top of the limiting rod (8) passes through the insertion hole (74) and extends to the top of the insertion hole (74).

6. The surface contact positioning angle head according to claim 1, characterized in that: One end of the connecting clamp (2) close to the positioning pin (5) is assembled and connected with two fastening screws.

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