Multi-point-position variable-pitch module

Abstract

The utility model discloses a multi-point variable pitch module, which relates to the technical field of variable pitch equipment, and comprises a variable pitch rod, a rotating rod and a plurality of variable pitch units, the variable pitch rod is provided with a first variable pitch thread, and the plurality of variable pitch units are in sliding fit on the first variable pitch thread based on a first connecting pin; the variable-pitch unit comprises a variable-pitch sleeve and two action plates, the variable-pitch sleeve is connected to the rotating rod in a sleeving mode, a fixing piece is arranged between the variable-pitch sleeve and the rotating rod, the fixing piece is arranged on the variable-pitch sleeve, the rotating rod is provided with a guide sliding groove, the fixing piece is fixed to the variable-pitch sleeve through a bolt, and one end of the fixing piece is inserted into the guide sliding groove of the rotating rod; the variable-pitch sleeve is provided with a second variable-pitch thread, and the action plate is in sliding fit with the second variable-pitch thread based on the second connecting pin. Through cooperation of the variable-pitch rods and the rotating rods, graded adjustment of the multiple variable-pitch units is achieved, the flexibility of variable-pitch adjustment is improved, multi-point synchronous adjustment can be achieved, and the debugging convenience of the variable-pitch module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pitch-variable equipment, in particular to a multi-point pitch-variable module. Background Art

[0002] Existing threaded rod pitch changing devices are generally configured as linear pitch changing of a single threaded rod. When synchronous pitch changing of multiple points is required, multiple sets of pitch changing modules need to be added, which makes the pitch changing debugging of multiple sets of pitch changing modules difficult and is difficult to meet the pitch changing adjustment of multiple working points. Utility Model Content

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a multi-point pitch-changing module, which drives a plurality of pitch-changing units to adjust the pitch through a pitch-changing rod, adjusts the position of the action plate in the pitch-changing unit based on the rotating rod, realizes hierarchical adjustment, improves the flexibility of the pitch-changing adjustment, can realize multi-point synchronous adjustment, and improves the debugging convenience of the pitch-changing module.

[0004] The utility model provides a multi-point pitch-changing module, which includes a pitch-changing rod, a plurality of pitch-changing units connected to the pitch-changing rod, and a rotating rod for receiving the plurality of pitch-changing units. The pitch-changing rod is provided with a first pitch-changing thread, and the plurality of pitch-changing units are slidably fitted on the first pitch-changing thread based on a first connecting pin.

[0005] Any of the pitch-changing units includes a pitch-changing sleeve and two action plates, the pitch-changing sleeve is sleeved on the rotating rod, a fixing member is provided between the pitch-changing sleeve and the rotating rod, the fixing member is provided on the pitch-changing sleeve, the rotating rod is provided with a guide slot, the fixing member is fixed to the pitch-changing sleeve by a bolt, and one end of the fixing member is inserted into the guide slot of the rotating rod;

[0006] The pitch-changing sleeve is provided with a second pitch-changing thread, and the action plate is slidably fitted on the second pitch-changing thread based on a second connecting pin.

[0007] Furthermore, the pitch-changing rod and the rotating rod are arranged in parallel.

[0008] Furthermore, the multi-point variable distance module also includes a first linear guide rail, and a plurality of the variable distance units are slidably fitted on the first linear guide rail.

[0009] Furthermore, the pitch-changing unit further comprises a bearing seat and a bearing disposed in the bearing seat, and the bearing seat of the pitch-changing unit is connected to the pitch-changing sleeve based on the bearing;

[0010] A first sliding block is provided at one end of the bearing seat, and the bearing seat is slidably connected to the first linear guide rail based on the first sliding block.

[0011] Furthermore, the multi-point variable distance module also includes a second linear guide rail, and the action plate is slidably fitted on the second linear guide rail.

[0012] Furthermore, the multi-point variable distance module also includes a first driving component, and the first driving component is drivingly connected to the rotating rod.

[0013] Furthermore, the multi-point pitch-changing module also includes a second driving component, which is drivingly connected to the pitch-changing rod.

[0014] Furthermore, the first variable pitch thread includes a first section of thread and a second section of thread, and the first section of thread and the second section of thread are symmetrically distributed on the pitch rod.

[0015] Furthermore, the second variable pitch thread includes a third thread section and a fourth thread section that are symmetrically distributed, and the two action plates are correspondingly matched on the third thread section and the fourth thread section.

[0016] The utility model provides a multi-point pitch-changing module, which drives several pitch-changing units to adjust the pitch through a pitch-changing rod, adjusts the position of the action plate in the pitch-changing unit based on the rotating rod, realizes hierarchical adjustment, improves the flexibility of the pitch adjustment, can realize multi-point synchronous adjustment, and improves the debugging convenience of the pitch-changing module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the internal structure of the multi-point variable distance module in the embodiment of the utility model;

[0019] Figure 2 This is a schematic structural diagram of a pitch change rod in an embodiment of the present utility model;

[0020] Figure 3 It is a structural schematic diagram of the pitch-changing unit in an embodiment of the present utility model. DETAILED DESCRIPTION

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

[0022] Please refer to Figures 1 to 3 An embodiment of the utility model provides a multi-point pitch variable module, which includes: a pitch variable rod 2, a plurality of pitch variable units 3 connected to the pitch variable rod 2, and a rotating rod 1 for receiving the plurality of pitch variable units 3. The pitch variable rod 2 is provided with a first pitch variable thread, and the plurality of pitch variable units 3 are slidably fitted on the first pitch variable thread based on a first connecting pin. When the pitch variable rod 2 rotates, the plurality of pitch variable units 3 can move along the first pitch variable thread of the pitch variable rod 2, thereby adjusting the spacing between the plurality of pitch variable units 3.

[0023] Any of the pitch changing units 3 includes a pitch changing sleeve 31 and two action plates 32. The pitch changing sleeve 31 is sleeved on the rotating rod 1, and a second pitch changing thread is provided on the pitch changing sleeve 31. The action plate 32 is slidably fitted on the second pitch changing thread based on a second connecting pin. When the rotating rod 1 rotates, the pitch changing sleeves 31 of several pitch changing units 3 rotate with the rotating rod 1, thereby driving the two action plates 32 to move along the second pitch changing thread of the pitch changing sleeve 31, thereby adjusting the distance between the two action plates 32.

[0024] Based on the cooperation between the rotating rod 1 and the pitch changing rod 2, the multi-point pitch changing module can realize the spacing adjustment of several pitch changing units 3, and at the same time can meet the spacing adjustment between the two action plates 32 inside any pitch changing unit 3, that is, it can realize the synchronous pitch changing of multiple points and the pitch adjustment of the clamping size of multiple stations.

[0025] Specifically, the pitch-changing rod 2 and the rotating rod 1 are arranged in parallel. Based on the dual-axis parallel arrangement, the pitch-changing adjustment requirements of multiple working points can be met. Based on the graded adjustment method, the rotating rod 1 and the pitch-changing rod 2 can meet the synchronous adjustment of multiple workstations, effectively improving the convenience of debugging the multi-point pitch-changing module.

[0026] Specifically, the multi-point pitch changing module also includes a first linear guide rail 6, and several pitch changing units 3 are slidably fitted on the first linear guide rail 6. The first linear guide rail 6 is used to limit the moving direction of the pitch changing unit 3, so that when the pitch changing rod 2 rotates, several pitch changing units 3 move along the axial direction of the pitch changing rod 2.

[0027] Furthermore, the pitch changing unit 3 also includes a bearing seat 33 and a bearing 34 arranged in the bearing seat 33. The bearing seat 33 of the pitch changing unit 3 is connected to the pitch changing sleeve 31 based on the bearing 34, so that when the rotating rod 1 rotates, it can drive the pitch changing sleeve 31 to rotate relative to the bearing seat 33.

[0028] Furthermore, a fixing part is provided between the pitch changing sleeve 31 and the rotating rod 1, and the fixing part is provided on the pitch changing sleeve 31. The rotating rod 1 is provided with a guide groove. The fixing part is fixed to the pitch changing sleeve 31 based on a bolt, and one end of the fixing part is inserted into the guide groove of the rotating rod 1, so that the fixing part can be slidably connected with the guide groove. When the pitch changing sleeve 31 moves horizontally, the pitch changing sleeve 31 can move horizontally in the axial direction of the rotating rod 1 based on the fixing part; when the rotating rod 1 rotates, the pitch changing sleeve 31 can rotate with the rotating rod 1 based on the matching structure between the fixing part and the rotating rod 1.

[0029] Specifically, a first slider 7 is provided at one end of the bearing seat 33, and the bearing seat 33 is slidingly connected to the first linear guide rail 6 based on the first slider 7. When the pitch change rod 2 rotates, the pitch change unit 3 moves on the first linear guide rail 6 based on the first slider 7 to meet the spacing adjustment of several pitch change units 3.

[0030] Specifically, the multi-point pitch changing module also includes a second linear guide rail 8, and the action plate 32 is slidably fitted on the second linear guide rail 8. The second linear guide rail 8 is used to limit the moving direction of the action plate 32, so that when the rotating rod 1 rotates, the action plate 32 of any pitch changing unit 3 can move along the axial direction of the pitch changing sleeve 31.

[0031] Furthermore, a second slider 9 is provided on the action plate 32 , and the action plate 32 is slidably connected to the second linear guide rail 8 based on the second slider 9 , so that the two action plates 32 of the pitch changing unit 3 can move along the second linear guide rail 8 .

[0032] Specifically, the multi-point pitch-changing module also includes a first driving component 4, which is driven and connected to the rotating rod 1, and the first driving component 4 is used to drive the rotating rod 1 to rotate. The multi-point pitch-changing module also includes a second driving component 5, which is driven and connected to the pitch-changing rod 2, and the second driving component 5 is used to drive the pitch-changing rod 2 to rotate.

[0033] Furthermore, the first driving component 4 and the second driving component 5 may be motors, and by driving the rotating rod 1 and the pitch changing rod 2 to rotate, precise control over a plurality of pitch changing units 3 and the action plate 32 may be achieved.

[0034] Furthermore, the first variable pitch thread includes a first section of thread 21 and a second section of thread 22, and the first section of thread 21 and the second section of thread 22 are symmetrically distributed on the pitch rod 2. When the pitch rod 2 rotates, the first section of thread 21 and the second section of thread 22 rotate in opposite directions, so that several pitch units 3 can gather toward the center position of the pitch rod 2, or several pitch units 3 can be synchronously dispersed in the axial direction of the pitch rod 2.

[0035] Furthermore, the second variable pitch thread includes a symmetrically distributed third segment thread 311 and a fourth segment thread 312, and the two action plates 32 are correspondingly engaged on the third segment thread 311 and the fourth segment thread 312. When the rotating rod 1 rotates, the variable pitch sleeve 31 rotates with the rotating rod 1 and drives the two action plates 32 to move toward each other, shortening the distance between the two action plates 32, or drives the two action plates 32 to move back to each other, increasing the distance between the two action plates 32.

[0036] An embodiment of the present utility model provides a multi-point pitch-changing module, which drives several pitch-changing units 3 to adjust the pitch through a pitch-changing rod 2, and adjusts the position of the action plate 32 in the pitch-changing unit 3 based on the rotating rod 1 to achieve hierarchical adjustment, improve the flexibility of the pitch adjustment, and can realize multi-point synchronous adjustment, thereby improving the debugging convenience of the pitch-changing module.

[0037] In addition, the above is a detailed introduction to a multi-point variable distance module provided by an embodiment of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, based on the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A multi-point variable distance module, characterized in that: The multi-point pitch-changing module includes: a pitch-changing rod, a plurality of pitch-changing units connected to the pitch-changing rod, and a rotating rod for receiving the plurality of pitch-changing units, wherein the pitch-changing rod is provided with a first pitch-changing thread, and the plurality of pitch-changing units are slidably fitted on the first pitch-changing thread based on a first connecting pin; Any of the pitch-changing units includes a pitch-changing sleeve and two action plates, the pitch-changing sleeve is sleeved on the rotating rod, a fixing member is provided between the pitch-changing sleeve and the rotating rod, the fixing member is provided on the pitch-changing sleeve, the rotating rod is provided with a guide slot, the fixing member is fixed to the pitch-changing sleeve by a bolt, and one end of the fixing member is inserted into the guide slot of the rotating rod; The pitch-changing sleeve is provided with a second pitch-changing thread, and the action plate is slidably fitted on the second pitch-changing thread based on a second connecting pin.

2. The multi-point variable distance module according to claim 1, characterized in that: The pitch change rod and the rotation rod are arranged in parallel.

3. The multi-point variable distance module according to claim 1, wherein: The multi-point variable distance module further includes a first linear guide rail, and a plurality of the variable distance units are slidably fitted on the first linear guide rail.

4. The multi-point variable distance module according to claim 3, characterized in that: The pitch-changing unit further comprises a bearing seat and a bearing disposed in the bearing seat, wherein the bearing seat of the pitch-changing unit is connected to the pitch-changing sleeve based on the bearing; A first sliding block is provided at one end of the bearing seat, and the bearing seat is slidably connected to the first linear guide rail based on the first sliding block.

5. The multi-point variable distance module according to claim 1, wherein: The multi-point variable distance module further includes a second linear guide rail, and the action plate is slidably fitted on the second linear guide rail.

6. The multi-point variable distance module according to claim 1, wherein: The multi-point variable distance module further includes a first driving component, which is drivingly connected to the rotating rod.

7. The multi-point variable distance module according to claim 1, wherein: The multi-point pitch-changing module further includes a second driving component, which is drivingly connected to the pitch-changing rod.

8. The multi-point variable distance module according to claim 1, wherein: The first variable pitch thread includes a first thread section and a second thread section, and the first thread section and the second thread section are symmetrically distributed on the pitch variable rod.

9. The multi-point variable distance module according to claim 1, wherein: The second variable pitch thread includes a third thread section and a fourth thread section that are symmetrically distributed, and the two action plates are correspondingly matched on the third thread section and the fourth thread section.

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