A hob offset position grinding fixture

Abstract

The utility model discloses a hob offset position sharpening clamp in the field of clamping fixture technology, comprising: a first mounting bin and a second mounting bin mounted above a mounting rail, the inner wall of the first mounting bin being slidably plugged with a resistance rod, and also comprising a mounting unit and a driving unit, the mounting unit being used to mount the first mounting bin and the second mounting bin above the mounting rail, the driving unit being used to drive the resistance rod to slide on the inner wall of the first mounting bin. In the utility model, the first mounting bin and the second mounting bin are first mounted above the mounting rail by the mounting unit, the resistance rod is controlled to move on the inner wall of the first mounting bin by the driving unit, and then the two ends of the rolling body are respectively mounted on the resistance rod or one end of the rolling rod by the connecting unit, so that the angle of the hob body can be controlled by adjusting the rotation angle of the rolling rod through the angle control unit, which is convenient for subsequent processing operations.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping fixtures, in particular to a hob offset position grinding clamping fixture. Background Art

[0002] A hob is a gear processing tool with teeth arranged in a spiral line along a cylinder or cone. It is used to process cylindrical gears, worm gears and other cylindrical toothed workpieces by the development method. There are many types of hobs, among which the more common ones are gear hobs and thousand-cut hobs. The tooth heads on their surface are generally arranged in a circle divided into equal parts every 30° (360° / 12°).

[0003] At present, when the hob is in use, the diameter of the part between each two adjacent tooth heads may often deviate from the required diameter, which will affect the accuracy of the workpiece processed by it, and it needs to be polished by a grinder, such as Figure 1 As shown, it includes a mounting track 1 of a hob grinder and a hob body 2 arranged above it. The surface of the mounting track of the current hob grinder is generally equipped with two separate clamps, and the two clamps respectively fix the two ends of the hob. When the angle of the hob body needs to be adjusted, one of the clamps can control the rotation of the hob body, and then it is ground by the grinding unit of the hob grinder. For manual clamps, it is difficult for the user to achieve accurate control when controlling the rotation angle of the hob body, which affects the subsequent grinding effect. Therefore, a new type of hob variable position grinding clamp is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping fixture to solve the problem that it is difficult for a user to accurately control the rotation angle of a hob body, thereby affecting the subsequent grinding effect.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A clamping fixture comprises: a first mounting bin and a second mounting bin mounted above a mounting track, wherein an inner wall of the first mounting bin is slidably plugged with a resisting rod, and further comprises a mounting unit and a driving unit, wherein the mounting unit is used to mount the first mounting bin and the second mounting bin above the mounting track, and the driving unit is used to drive the resisting rod to slide on the inner wall of the first mounting bin;

[0007] A rolling rod is rotatably inserted on the surface of the second mounting bin, and also includes an angle control unit and a connecting unit. The angle control unit is used to control the rotation angle of the rolling rod on the inner wall of the second mounting bin, and the connecting unit is used to connect one end of the interference rod or the rolling rod to the two ends of the hob body respectively.

[0008] Furthermore, the mounting unit includes two mounting rods respectively threadedly inserted into the surfaces of the first mounting bin and the second mounting bin, one end of the two mounting rods is rotatably sleeved with a mounting block, and the two mounting blocks are slidably inserted into the inner wall of the mounting track.

[0009] Further, the driving unit includes a driving groove opened on the inner wall of the first mounting bin, a T-shaped block is slidably inserted into the inner wall of the driving groove, a rack is fixedly installed on the bottom of the T-shaped block, a gear is meshed on the surface of the rack, the gear is rotatably installed on the inner wall of the first mounting bin, a driving turntable is fixedly installed on one end of the gear, the rack is fixedly installed on one end of the interference rod, and also includes a limit assembly, which is used to limit the position of the T-shaped block on the inner wall of the driving groove.

[0010] Furthermore, the limiting assembly includes a pressure block slidably inserted into the inner wall of the driving groove, a limiting rod is rotatably installed on the surface of the pressure block, and the limiting rod is threadedly inserted into the inner wall of the driving groove.

[0011] Furthermore, the angle control unit includes a control groove opened on the inner wall of the second installation bin, the rolling rod is rotatably inserted into the inner wall of the control groove, the surface of the rolling rod is provided with an interference groove, the surface of the second installation bin is threadedly inserted with a control rod, and the control rod is slidably inserted into the inner wall of the interference groove.

[0012] Furthermore, the connecting unit includes a connecting rod slidably inserted into the inner wall of the roller body, and both ends of the connecting rod are respectively provided with a contact hole and a square groove, one end of the contact rod is slidably inserted into the inner wall of the contact hole, and one end of the rolling rod is fixedly installed with a square block, and the surface of the square block is slidably inserted into the inner wall of the square groove.

[0013] Furthermore, a fine adjustment unit is included, and the fine adjustment unit is used to control the rotation angle of the rolling rod.

[0014] Furthermore, the fine-tuning unit includes a rotating disk fixedly mounted on one end of the rolling rod, an adjusting ring fixedly mounted on the surface of the second mounting bin, a limiting tube slidably inserted into the surface of the rotating disk, a plurality of limiting holes are opened on the surface of the adjusting ring, a spring slidably sleeved on the surface of the limiting tube, two ends of the spring are respectively fixedly mounted on the surfaces of the limiting tube and the rotating disk, and the surface of the limiting tube is slidably inserted into the inner wall of one of the limiting holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, the first mounting bin and the second mounting bin are firstly mounted above the mounting rail by means of the mounting unit, the interference rod is controlled to move on the inner wall of the first mounting bin by means of the driving unit, and then the two ends of the rolling body are respectively mounted on one end of the interference rod or the rolling rod by means of the connecting unit. The angle of the hob body can be controlled by adjusting the rotation angle of the rolling rod by means of the angle control unit, which facilitates subsequent processing operations.

[0017] 2. In the utility model, a rotating disk is fixedly installed at one end of the rolling rod, an adjusting ring is fixedly installed on the surface of the second mounting bin, and a plurality of limiting holes are opened on the surface of the adjusting ring, so that in subsequent use, the user can drive the rolling rod to rotate by the rotating disk, and the limiting tube on the surface of the rotating disk is inserted into the limiting holes at different positions to achieve precise adjustment of the rotation angle of the rolling body. Because the angle difference between each limiting hole is 20 degrees, and because the tooth heads on the surface of the rolling body are generally arranged in a circle at intervals of 30° (360° / 12°), the user can adjust the limiting tube to insert into the inner wall of the limiting holes at different positions to achieve precise control of the rotation angle of the rolling rod, so that the hob grinder of the hob grinder is always aligned with the position between two adjacent tooth heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the clamping fixture of the utility model;

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of the clamping fixture of the utility model;

[0020] Figure 3 It is a partial schematic diagram of a half-section view of the clamping fixture of the utility model;

[0021] Figure 4 Another partial schematic diagram of a half-section view of the clamping fixture of the utility model;

[0022] Figure 5 For this utility model Figure 4 Enlarged view of AA in the figure.

[0023] In the figure: 1. mounting track; 2. hob body; 3. first mounting compartment; 4. second mounting compartment; 5. interference rod; 6. mounting unit; 61. mounting rod; 62. mounting block; 7. driving unit; 71. driving groove; 72. T-shaped block; 73. rack; 74. gear; 75. driving turntable; 76. limiting assembly; 761. pressure block; 762. limiting rod; 8. rolling rod; 9. angle control unit; 91. control groove; 92. interference groove; 93. control rod; 10. connecting unit; 101. connecting rod; 102. interference hole; 103. square groove; 104. square block; 11. fine adjustment unit; 111. rotating disk; 112. adjusting ring; 113. limiting tube; 114. limiting hole; 115. spring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0025] The clamping fixture provided in this embodiment is mainly used to solve the problem that it is difficult for the user to accurately control the rotation angle of the hob body, thereby affecting the subsequent grinding effect, and provides the following technical solutions. Figure 1-Figure 5 Make a detailed description:

[0026] A clamping fixture includes: a first mounting bin 3 and a second mounting bin 4 mounted above a mounting track 1. First, the user needs to mount the first mounting bin 3 and the second mounting bin 4 above the mounting track 1 through the mounting unit 6. At the same time, a resistance rod 5 is slidably inserted into the inner wall of the first mounting bin 3, and a rolling rod 8 is rotatably inserted into the surface of the second mounting bin 4. The user can control the resistance rod 5 to slide on the inner wall of the first mounting bin 3 through a driving mechanism, and then connect one end of the resistance rod 5 or the rolling rod 8 to the two ends of a hob body 2 respectively through a connecting unit 10. Finally, the angle control unit 9 can be used to more accurately control the rotation angle of the rolling rod 8 on the inner wall of the second mounting bin 4, thereby realizing the adjustment of the rotation angle of the hob body 2. It should be noted that the rotation angle here refers to the angle presented by the rotation of a columnar object with the central axis as the rotation center.The main components of the mounting unit 6 are: two mounting blocks 62 that are slidably inserted into the inner wall of the mounting track 1, and the surfaces of the two mounting blocks 62 are rotatably inserted with mounting rods 61, and the two mounting rods 61 are respectively threadedly inserted into the surfaces of the first mounting compartment 3 and the second mounting compartment 4. Therefore, after the user slides the two mounting blocks 62 into the inner wall of the mounting track 1, the two mounting rods 61 are respectively rotated to drive the two mounting blocks 62 to squeeze the inner wall of the mounting track 1, thereby realizing the installation of the first mounting compartment 3 and the second mounting compartment 4 above the mounting track 1. The main components of the driving unit 7 are : A driving groove 71 is provided on the inner wall of the first mounting chamber 3, and a T-shaped block 72 is slidably inserted into the inner wall of the driving groove 71. Because a gear 74 is rotatably installed on the inner wall of the first mounting chamber 3, and a rack 73 is meshed on the surface of the gear 74, and because the rack 73 is fixedly installed on the bottom of the T-shaped block 72, the user rotates the driving turntable 75 fixedly installed on one end of the gear 74, and the rack 73 can be driven to slide by driving the gear 74, thereby further realizing the movement of the interference rod 5 fixedly installed on one end of the rack 73. The main components of the angle control unit 9 are: a control groove provided on the inner wall of the second mounting chamber 4 91, and the rolling rod 8 is rotatably inserted into the inner wall of the control groove 91. When in use, the user rotates the control rod 93 threadedly inserted into the inner wall of the control groove 91 to drive one end of the control rod 93 to abut against the inner wall of the abutting groove 92, thereby limiting the position of the rolling rod 8 on the inner wall of the control groove 91. The main components of the connecting unit 10 are: a connecting rod 101. When in use, the user inserts the connecting rod 101 into the inner wall of the hob body 2 so that the protrusion on the surface of the connecting rod 101 is aligned with the notch on the inner wall of the hob body 2 (in the prior art, the inner wall of the hob body 2 is provided with a notch so as to prevent the rolling rod 8 from being moved when using the hob body 2). The cutter body 2 is connected to the rotating shaft), and then the square block 104 at one end of the rolling rod 8 is inserted into the inner wall of the square groove 103 opened at one end of the connecting rod 101, and finally the contact rod 5 is driven to move by driving the turntable 75, so that one end of the contact rod 5 contacts the inner wall of the contact hole 102 opened at the other end of the connecting rod 101, so as to limit the position of the cutter body 2 between the first mounting bin 3 and the second mounting bin 4. Subsequently, when the rolling rod 8 is controlled to rotate, the connecting rod 101 will drive the cutter body 2 to rotate. In this process, the contact hole 102 rotates on the surface of the contact rod 5 to play a supporting role.

[0027] First, the first mounting bin 3 and the second mounting bin 4 are mounted above the mounting rail through the mounting unit 6, and the driving unit 7 is used to control the movement of the resistance rod 5 on the inner wall of the first mounting bin 3. Then, the two ends of the rolling body are respectively mounted on one end of the resistance rod 5 or the rolling rod 8 through the connecting unit 10. The angle of the hob body 2 can be controlled by adjusting the rotation angle of the rolling rod 8 through the angle control unit 9, which facilitates subsequent processing operations.

[0028] By fixing a rotating disk 111 at one end of the rolling rod 8, fixing an adjusting ring 112 on the surface of the second mounting bin 4, and opening a plurality of limiting holes 114 on the surface of the adjusting ring 112, the user can drive the rolling rod 8 to rotate by the rotating disk 111 during subsequent use, and can precisely adjust the rotation angle of the rolling body by inserting the limiting tube 113 on the surface of the rotating disk 111 into the limiting holes 114 at different positions. Because the angle difference between each limiting hole 114 is 20 degrees, and because the tooth heads on the surface of the rolling body are generally arranged in a circle at intervals of 18° (360° / 20°), the user can adjust the limiting tube 113 to insert into the inner wall of the limiting hole 114 at different positions, so as to precisely control the rotation angle of the rolling rod 8, so that the hob grinder of the hob grinder is always aligned with the position between two adjacent tooth heads.

[0029] like Figure 3 As shown, in some embodiments, the main components of the limiting assembly 76 are: a pressure block 761 slidably inserted into the inner wall of the driving groove 71. The user rotates the limiting rod 762 threadedly inserted into the inner wall of the driving groove 71 to drive the pressure block 761 rotatingly sleeved on one end of the limiting rod 762 to slide on the inner wall of the driving groove 71. By pressing the pressure block 761 on the surface of the T-shaped block 72, the T-shaped block 72 is limited on the inner wall of the driving groove 71.

[0030] like Figure 2 , Figure 4 , Figure 5 As shown, in some embodiments, a fine adjustment unit 11 is further included, and the fine adjustment unit 11 is used to control the rotation angle of the rolling rod 8, wherein the main components of the fine adjustment unit 11 are: a rotating disk 111 fixedly installed at one end of the rolling rod 8, and an adjustment ring 112 is fixedly installed on the surface of the second installation bin 4, and a plurality of limiting holes 114 are opened on the surface of the adjustment ring 112. When in use, the user pulls the limiting tube 113 slidably plugged on the surface of the rotating disk 111, and the spring 115 on the surface of the limiting tube 113 is stretched to extend the limiting tube 113. 113 is pulled out of the limiting hole 114 (the two ends of the spring 115 are respectively fixedly installed on the surface of the limiting tube 113 and the rotating disk 111), and finally the rotating disk 111 is driven to rotate, and the limiting tube 113 is inserted into the limiting holes 114 at different positions. Under the action of the spring 115, the position of the limiting tube 113 on the inner wall of the limiting hole 114 is maintained, so that the rotation angle of the rotating disk 111 can be accurately controlled. It should be noted that: a scale groove is opened on the surface of the second mounting bin 4, and the user can judge the rotation angle of the rolling rod 8 through the scale groove.

[0031] The workflow of this utility model:

[0032] First, the user slides both mounting blocks 62 into the inner wall of the mounting track 1, and then rotates the two mounting rods 61 respectively so that both mounting blocks 62 abut against the inner wall of the mounting track 1, thereby limiting the first mounting compartment 3 and the second mounting compartment 4 above the mounting track 1.

[0033] Secondly, after the user inserts the connecting rod 101 into the inner wall of the hob body 2, the square groove 103 is aligned with the square block 104 and put on the square block, and the rotating disk 75 is driven to extend and retract the abutment rod 5 so that one end of the abutment rod 5 abuts against the inner wall of the abutment hole 102, and the connection between the two ends of the connecting rod 101 at the abutment rod 5 and one end of the rolling rod 8 can be completed. Finally, the limiting rod 762 is rotated to make the pressing block 761 press the T-shaped block 72 to achieve the limiting of the abutment rod 5, and the control rod 93 is rotated to make the control rod 93 abut against the inner wall of the abutment groove 92 to achieve the limiting of the rolling rod 8, and the hob body 2 can be ground by the grinding unit of the hob grinder. It should be noted that: because the tooth heads on the surface of most hob bodies 2 are generally arranged at intervals of 30° (360° / Therefore, the user can precisely control the rotation angle of the rolling rod 8 by inserting the limiting tube 113 into the limiting holes 114 at different positions, that is, each time an adjacent limiting hole 114 is adjusted, the rotation angle of the rolling rod 8 will be adjusted by 30 degrees, so that after each adjustment, the grinding unit of the hob grinder will be aligned with the position between the two tooth heads on the surface of the hob body 2, further controlling the processing accuracy.

Claims

1. A hob offset position grinding fixture, characterized in that: include: A first mounting bin (3) and a second mounting bin (4) mounted above the mounting rail (1), wherein an inner wall of the first mounting bin (3) is slidably plugged with a resisting rod (5), and further comprising a mounting unit (6) and a driving unit (7), wherein the mounting unit (6) is used to mount the first mounting bin (3) and the second mounting bin (4) above the mounting rail (1), and the driving unit (7) is used to drive the resisting rod (5) to slide on the inner wall of the first mounting bin (3); The surface of the second mounting bin (4) is rotatably plugged with a rolling rod (8), and further comprises an angle control unit (9) and a connection unit (10), wherein the angle control unit (9) is used to control the rotation angle of the rolling rod (8) on the inner wall of the second mounting bin (4), and the connection unit (10) is used to connect one end of the abutment rod (5) or the rolling rod (8) to the two ends of the hob body (2), respectively.

2. The hob offset grinding fixture according to claim 1, characterized in that: The mounting unit (6) comprises two mounting rods (61) respectively threadedly inserted into the surfaces of the first mounting bin (3) and the second mounting bin (4), one end of each of the two mounting rods (61) being rotatably sleeved with a mounting block (62), and each of the two mounting blocks (62) being slidably inserted into the inner wall of the mounting track (1).

3. The hob offset grinding fixture according to claim 1, characterized in that: The driving unit (7) comprises a driving groove (71) formed on the inner wall of the first mounting bin (3); a T-shaped block (72) is slidably inserted into the inner wall of the driving groove (71); a rack (73) is fixedly mounted on the bottom of the T-shaped block (72); a gear (74) is meshed on the surface of the rack (73); the gear (74) is rotatably mounted on the inner wall of the first mounting bin (3); a driving turntable (75) is fixedly mounted on one end of the gear (74); the rack (73) is fixedly mounted on one end of the abutting rod (5); and a limiting assembly (76) is further included; the limiting assembly (76) is used to limit the position of the T-shaped block (72) on the inner wall of the driving groove (71).

4. The hob offset grinding fixture according to claim 3 is characterized in that: The limiting assembly (76) comprises a pressing block (761) slidably plugged into the inner wall of the driving groove (71), a limiting rod (762) rotatably mounted on the surface of the pressing block (761), and the limiting rod (762) is threadedly plugged into the inner wall of the driving groove (71).

5. The hob offset grinding fixture according to claim 1, characterized in that: The angle control unit (9) comprises a control groove (91) provided on the inner wall of the second installation bin (4); the rolling rod (8) is rotatably plugged into the inner wall of the control groove (91); a resistance groove (92) is provided on the surface of the rolling rod (8); a control rod (93) is threadedly plugged into the surface of the second installation bin (4); and the control rod (93) is slidably plugged into the inner wall of the resistance groove (92).

6. The hob offset position grinding fixture according to claim 1, characterized in that: The connection unit (10) comprises a connection rod (101) slidably plugged into the inner wall of the hob body (2); both ends of the connection rod (101) are respectively provided with a contact hole (102) and a square groove (103); one end of the contact rod (5) is slidably plugged into the inner wall of the contact hole (102); one end of the rolling rod (8) is fixedly mounted with a square block (104); the surface of the square block (104) is slidably plugged into the inner wall of the square groove (103).

7. The hob offset grinding fixture according to claim 1, characterized in that: It also comprises a fine adjustment unit (11), wherein the fine adjustment unit (11) is used to control the rotation angle of the rolling rod (8).

8. The hob offset grinding fixture according to claim 7, characterized in that: The fine adjustment unit (11) comprises a rotating disk (111) fixedly mounted on one end of the rolling rod (8); an adjusting ring (112) is fixedly mounted on the surface of the second mounting bin (4); a limiting tube (113) is slidably inserted into the surface of the rotating disk (111); a plurality of limiting holes (114) are provided on the surface of the adjusting ring (112); a spring (115) is slidably sleeved on the surface of the limiting tube (113); two ends of the spring (115) are respectively fixedly mounted on the surfaces of the limiting tube (113) and the rotating disk (111); and the surface of the limiting tube (113) is slidably inserted into the inner wall of one of the limiting holes (114).

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