A clamp spacing adjustment mechanism

Abstract

The utility model discloses a fixture spacing adjustment mechanism, comprising a base, a separation mechanism, a plurality of sliders, a clamping piece, a telescopic piece and a driving device, wherein the separation mechanism comprises a guide piece, a shifting block and a driving shaft, wherein the guide piece is arranged on the base, the plurality of sliders are slidably connected to the guide piece, the shifting block is arranged on one side of the slider, the driving shaft is arranged on one side of the slider and is rotatably connected to the base, one end of the driving shaft passes through the base and is provided with a clamping part, a driving groove group is provided on the side wall of the driving shaft, the driving groove group comprises a plurality of thread grooves, the plurality of thread grooves are arranged in the same direction, the shifting blocks are respectively slidably connected in corresponding thread grooves, the clamping piece is rotatably connected to the telescopic end of the telescopic piece, the driving device is arranged on the telescopic end of the telescopic piece and can drive the clamping piece to rotate, and the driving device is separated from the base by plug-in driving, so as to avoid the driving device interfering with the movement of the base and reduce the energy consumption of the mobile mechanism when carrying the base.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp spacing adjustment mechanism. Background Art

[0002] The production process of components (such as diodes) is inseparable from fixtures. Since most components are small in size, in order to ensure production efficiency, multiple fixtures are usually required to clamp multiple components for processing at the same time. Considering the processing efficiency or processing method of the components, multiple fixtures need to be gathered together in some processes to facilitate unified processing of the components, and then separated so that the fixtures can be opened to remove the components. The existing fixture spacing adjustment mechanism usually includes a base, a plurality of fixtures, a separation mechanism and a driving device. The fixtures are slidably connected to the base one by one in the same direction. The separation mechanism and the driving device are both arranged on the base. The driving device can drive the separation mechanism to drive the fixture to slide and separate.

[0003] However, the driving device is often large in size, and its direct fixed connection to the base not only easily hinders the movement of the base, but also increases the load on the base and increases the energy consumption of the mobile base. Utility Model Content

[0004] In view of this, the utility model provides a clamp spacing adjustment mechanism, which is used to solve the problem that the driving device of the clamp spacing adjustment mechanism in the prior art is large in size and its direct fixed connection to the base not only easily hinders the movement of the base, but also increases the weight of the base and increases the energy consumption of the mobile base.

[0005] In order to achieve one or part or all of the above purposes or other purposes, the utility model proposes a clamp spacing adjustment mechanism, including a base, a separation mechanism, a plurality of sliders, a clamping member, a telescopic member and a driving device, wherein the separation mechanism includes a guide member, a shift block and a driving shaft, wherein the guide member is fixedly arranged on the base, and a plurality of sliders are slidably connected to the guide member one by one, and the slider can slide linearly along the guide member, the shift block is arranged on one side of the slider, and the driving shaft is arranged on one side of the slider along the sliding direction of the slider and is rotatably connected to the base, and one end of the driving shaft passes through the base and is provided with The clamping part has at least one driving groove group on the side wall of the driving shaft, and the driving groove group includes a plurality of thread grooves distributed along the axial direction of the driving shaft, and the plurality of thread grooves are arranged in the same direction and correspond to the shift blocks one by one. The shift blocks are respectively slidably connected in the corresponding thread grooves, and the pitches of the plurality of thread grooves increase one by one along one end of the driving shaft. The clamping part is rotatably connected to the telescopic end of the telescopic part, and the rotation axis of the clamping part is colinear with the driving shaft. The telescopic part can drive the clamping part to clamp with the clamping part, and the driving device is arranged on the telescopic end of the telescopic part and can drive the clamping part to rotate.

[0006] Preferably, the clamp spacing adjustment mechanism also includes a front plate, which is vertically arranged on the telescopic end of the telescopic member, the clamping member is rotatably connected to the side of the front plate facing away from the telescopic member, and the driving device is arranged on the front plate and is drivingly connected to the clamping member.

[0007] Preferably, the driving device includes a gear, a motor and a transmission belt, the gear is coaxially fixed on the clamping member, the motor is arranged on the front plate, the axis of the motor is parallel to the axis of the clamping member, and the output shaft of the motor is connected to the gear transmission through a belt.

[0008] Preferably, two of the separation mechanisms are provided, and the two separation mechanisms are arranged side by side on the base, one end of the slider is slidably connected to a guide member, and the other end of the slider is slidably connected to another guide member, and two of the clamping parts and gears are provided, and the clamping parts and gears are arranged on the front plate in a one-to-one correspondence with the clamping parts, and the two gears are engaged with the transmission belt.

[0009] Preferably, a clamping member is located below the motor output shaft, and a tensioning wheel is rotatably connected between the clamping member and the output shaft on the side of the front plate facing away from the telescopic member, and the side wall of the tensioning wheel abuts against the outer side of the corresponding section of the transmission belt.

[0010] Preferably, the clamp spacing adjustment mechanism also includes a rear plate and a connecting rod, the connecting rod is vertically arranged on the side of the front plate facing the telescopic part, the rear plate is located behind the telescopic part and is fixedly connected to the rear end of the connecting rod, and a sliding sleeve is provided on the side wall of the telescopic part in the same direction, and the connecting rod can be slidably sleeved on the inner side of the sliding sleeve.

[0011] Preferably, one end of the clamping member close to the telescopic member is coaxially connected with a rotating shaft, and the rotating shaft passes through the front plate and is rotatably connected to the rear plate.

[0012] Preferably, there is more than one drive groove group, and the plurality of drive groove groups are respectively arranged at both ends of the drive shaft, the directions of the thread grooves corresponding to the drive groove groups at both ends of the drive shaft are opposite, and the pitch increasing directions of the thread grooves corresponding to the drive groove groups at both ends of the drive shaft are opposite.

[0013] Preferably, the guide member is a sliding rod, the sliding rod is horizontally arranged on the base, and the sliding blocks are all slidably connected to the sliding rod.

[0014] Preferably, the clamp spacing adjustment mechanism further includes a positioning bead, one end of the driving shaft has two positioning holes distributed along the circumferential direction, and the positioning bead and the positioning hole are arranged on the base correspondingly.

[0015] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0016] After the above-mentioned fixture spacing adjustment mechanism is adopted, when in use, the base can be fixedly arranged on the corresponding moving mechanism, so that the components clamped on the top of the base can be moved by the moving mechanism during processing. The telescopic member can be horizontally fixed on the operating platform. The telescopic member is a cylinder. The telescopic member can synchronously move the clamping member and the driving device through the telescopic end to make the clamping member engage with the clamping part. At this time, the driving device drives the clamping member to rotate, which can drive the driving shaft to rotate, thereby squeezing the shifting block through the inner wall of the thread groove, and using the shifting block to push the slider to slide along the guide member. Moreover, since the pitches of multiple thread grooves increase one by one along one end of the driving shaft, when the driving shaft rotates a fixed angle, the sliding movement of the sliders corresponding to different shifting blocks The larger the pitch of the thread groove, the longer the corresponding sliding stroke of the slider. When multiple sliders slide in the direction of the gradually increasing pitch of the thread groove at the same time, the distance between the two adjacent sliders will gradually increase, thereby separating the clamps on the slider so that the clamps can be opened. When multiple sliders slide in the direction of the gradually decreasing pitch of the thread groove at the same time, the distance between the two adjacent sliders will gradually decrease, thereby gathering the clamps on the slider so that the components can be processed uniformly. The drive device is separated from the base by plug-in drive, which prevents the drive device from hindering the movement of the base and causing interference between tooling. At the same time, the load on the base is reduced, and the energy consumption of the mobile mechanism when carrying the base is reduced, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] in:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 The explosion of some parts in the utility model Figure 1 ;

[0021] Figure 3 The explosion of some parts in the utility model Figure 2 ;

[0022] Figure 4 The explosion of some parts in the utility model Figure 3 .

[0023] In the figure: 1. base; 2. separation mechanism; 3. guide member; 4. slider; 41. shift block; 5. drive shaft; 51. clamping part; 52. drive groove group; 520. threaded groove; 53. positioning hole; 6. clamping member; 61. rotating shaft; 7. telescopic member; 71. sliding sleeve; 72. front plate; 73. rear plate; 74. connecting rod; 8. driving device; 81. gear; 82. motor; 83. transmission belt; 84. tensioning wheel; 9. positioning bead. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] like Figure 1-4As shown, a fixture spacing adjustment mechanism includes a base 1, a separation mechanism 2, a plurality of sliders 4, a clamping member 6, a telescopic member 7 and a driving device 8. The separation mechanism 2 includes a guide member 3, a shifting block 41 and a driving shaft 5. The guide member 3 is fixedly arranged on the base 1. The plurality of sliders 4 are slidably connected to the guide member 3 one by one. The slider 4 can slide linearly along the guide member 3. The shifting block 41 is arranged on one side of the slider 4. The driving shaft 5 is arranged on one side of the slider 4 along the sliding direction of the slider 4 and is rotatably connected to the base 1. One end of the driving shaft 5 passes through the base 1 and is provided with a clamping portion 51. The side wall of the driving shaft 5 is provided with a At least one driving groove group 52, the driving groove group 52 includes a plurality of thread grooves 520 distributed axially along the driving shaft 5, the plurality of thread grooves 520 are arranged in the same direction and correspond one to one with the shifting blocks 41, the shifting blocks 41 are respectively slidably connected in the corresponding thread grooves 520, the pitches of the plurality of thread grooves 520 increase one by one along one end of the driving shaft 5, the clamping member 6 is rotatably connected to the telescopic end of the telescopic member 7, the rotation axis of the clamping member 6 is colinear with the driving shaft 5, the telescopic member 7 can drive the clamping member 6 to clamp with the clamping portion 51, the driving device 8 is arranged on the telescopic end of the telescopic member 7, and can drive the clamping member 6 to rotate.

[0028] Specifically, the clamp can be directly arranged on the top of the slider 4, so that multiple clamps are arranged side by side along the direction of the guide member 3, so that the components clamped by the clamps can be arranged more neatly, which is conducive to unified processing.

[0029] In this embodiment, when in use, the base 1 can be fixedly set on the corresponding moving mechanism so that the components clamped on the top of the base 1 can be moved by the moving mechanism during processing. The telescopic member 7 can be horizontally fixed on the operating platform. The telescopic member 7 is a cylinder. The telescopic member 7 can synchronously move the clamping member 6 and the driving device 8 through the telescopic end to make the clamping member 6 and the clamping portion 51 clamped. At this time, the driving device 8 drives the clamping member 6 to rotate, which can drive the driving shaft 5 to rotate, thereby squeezing the shifting block 41 through the inner wall of the thread groove 520, and using the shifting block 41 to push the slider 4 to slide along the guide member 3. Since the pitches of the multiple thread grooves 520 increase one by one along one end of the driving shaft 5, when the driving shaft 5 rotates a fixed angle, the sliding stroke of the slider 4 corresponding to different shifting blocks 41 The larger the pitch of the thread groove 520, the longer the corresponding sliding stroke of the slider 4. When multiple sliders 4 slide simultaneously in the direction in which the pitch of the thread groove 520 gradually increases, the distance between two adjacent sliders 4 will gradually increase, thereby separating the clamps on the slider 4 so that the clamps can be opened. When multiple sliders 4 slide simultaneously in the direction in which the pitch of the thread groove 520 gradually decreases, the distance between two adjacent sliders 4 will gradually decrease, thereby gathering the clamps on the slider 4 so that the components can be processed uniformly. The drive device 8 is separated from the base 1 by plug-in drive, which prevents the drive device 8 from hindering the movement of the base 1 and causing interference between tooling. At the same time, the load on the base 1 is reduced, and the energy consumption of the mobile mechanism when transporting the base 1 is reduced, which is more energy-saving and environmentally friendly.

[0030] In this embodiment, the clamping member 6 is a clamping block, and the clamping portion 51 is a clamping slot. The clamping block can be inserted into the clamping slot along the direction of the rotation axis and connected to the drive shaft 5. Of course, the clamping portion 51 can also be a clamping block, and the clamping slot can be set at the end of the clamping member 6.

[0031] In one embodiment, the telescopic member 7 may be an electric cylinder or a drive brake that enables movement.

[0032] Furthermore, the clamp spacing adjustment mechanism also includes a front plate 72, which is vertically arranged on the telescopic end of the telescopic member 7, and the clamping member 6 is rotatably connected to the side of the front plate 72 facing away from the telescopic member 7. The driving device 8 is arranged on the front plate 72 and is drivingly connected to the clamping member 6. When the telescopic end of the telescopic member 7 drives the front plate 72 to move in the telescopic direction, the front plate 72 will drive the clamping member 6 and the driving device 8 to move synchronously.

[0033] Furthermore, the driving device 8 includes a gear 81, a motor 82 and a transmission belt 83. The gear 81 is coaxially fixed on the clamping part 6, and the motor 82 is arranged on the front plate 72. The axis of the motor 82 is parallel to the axis of the clamping part 6. The output shaft of the motor 82 is connected to the gear 81 through a belt. When the output shaft of the motor 82 rotates, the gear 81 can be driven to rotate synchronously through the belt, thereby driving the clamping part 6 to rotate.

[0034] In one embodiment, the motor 82 may be a servo motor 82 , and the output shaft of the motor 82 may be coaxially connected to the rotating end of the clamping member 6 , so as to directly drive the clamping member 6 to rotate through the output shaft of the motor 82 .

[0035] Furthermore, two separation mechanisms 2 are provided, and the two separation mechanisms 2 are arranged side by side on the base 1, one end of the slider 4 is slidably connected to a guide member 3, and the other end of the slider 4 is slidably connected to another guide member 3, and two clamping members 6 and gears 81 are provided, and the clamping members 6 and gears 81 are arranged on the front plate 72 in a one-to-one correspondence with the clamping part 51, and the two gears 81 are engaged with the transmission belt 83, so that the two clamping members 6 can be driven simultaneously by the motor 82 to control the two separation mechanisms 2, thereby increasing the number of clamps that can be controlled to gather or disperse at the same time, thereby improving production efficiency.

[0036] Furthermore, a clamping member 6 is located below the output shaft of the motor 82, and a tensioning wheel 84 is rotatably connected between the clamping member 6 and the output shaft on the side of the front plate 72 facing away from the telescopic member 7. The side wall of the tensioning wheel 84 abuts against the outer side of the corresponding section of the transmission belt 83, so as to change the direction of the transmission belt 83 through the tensioning wheel 84, increase the contact area between the transmission belt 83 and the gear 81 below the output shaft of the motor 82, and improve the stability of the transmission.

[0037] Furthermore, the clamp spacing adjustment mechanism also includes a rear plate 73 and a connecting rod 74. The connecting rod 74 is vertically arranged on the side of the front plate 72 facing the telescopic member 7. The rear plate 73 is located behind the telescopic member 7 and is fixedly connected to the rear end of the connecting rod 74. A sliding sleeve 71 is provided on the side wall of the telescopic member 7 in the same direction. The connecting rod 74 can be slidably sleeved on the inner side of the sliding sleeve 71. When the telescopic end of the telescopic member 7 drives the front plate 72 to move in the telescopic direction, the connecting rod 74 will slide along the sliding sleeve 71 to provide additional support force for the front plate 72, so that the front plate 72 can slide more smoothly.

[0038] Furthermore, one end of the clamping member 6 close to the telescopic member 7 is coaxially connected with a rotating shaft 61, which passes through the front plate 72 and is rotatably connected to the rear plate 73. The clamping member 6 is rotatably connected to the front plate 72 and the rear plate 73 via the rotating shaft 61 to improve the installation stability of the clamping member 6.

[0039] Furthermore, there is more than one drive groove group 52, and preferably two in the present embodiment. The two drive groove groups 52 are respectively arranged at the two ends of the drive shaft 5, and the directions of the thread grooves 520 corresponding to the two drive groove groups 52 are opposite, and the pitch increasing directions of the thread grooves 520 corresponding to the two drive groove groups 52 are opposite. Therefore, when the drive shaft 5 rotates, the sliding directions of the sliders 4 corresponding to the two drive groove groups 52 are opposite, and the sliders 4 corresponding to the two drive groove groups 52 can slide together toward the middle of the drive shaft 5 or spread toward the two ends of the drive shaft 5 respectively.

[0040] Furthermore, the guide member 3 is a slide bar, which is horizontally arranged on the base 1, and the sliders 4 are slidably connected to the slide bar. When the drive shaft 5 rotates, the sliders 4 can be driven to slide along the axial direction of the slide bar through the threaded groove 520.

[0041] Furthermore, the clamp spacing adjustment mechanism also includes a positioning bead 9. One end of the drive shaft 5 has two positioning holes 53 distributed circumferentially. The positioning bead 9 and the positioning hole 53 are correspondingly arranged on the base 1. When the positioning bead 9 is aligned with the positioning hole 53, the positioning bead 9 will be inserted into the corresponding positioning hole 53, thereby helping to position the drive shaft 5. The positioning bead 9 can be purchased through market channels and will not be elaborated in this embodiment.

[0042] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A fixture spacing adjustment mechanism, characterized in that: include: A base, a separation mechanism, a plurality of slide blocks, a clamping member, a telescopic member and a driving device; The separation mechanism comprises a guide member, a shift block and a driving shaft, the guide member is fixedly arranged on the base, a plurality of the sliders are slidably connected to the guide member one by one, the slider can slide linearly along the guide member, the shift block is arranged on one side of the slider, the driving shaft is arranged on one side of the slider along the sliding direction of the slider and is rotatably connected to the base, one end of the driving shaft passes through the base and is provided with a clamping portion, at least one driving groove group is provided on the side wall of the driving shaft, the driving groove group comprises a plurality of thread grooves distributed along the axial direction of the driving shaft, the plurality of thread grooves are arranged in the same direction and correspond to the shift blocks one by one, the shift blocks are respectively slidably connected in the corresponding thread grooves, and the pitches of the plurality of thread grooves increase one by one along one end of the driving shaft; The clamping member is rotatably connected to the telescopic end of the telescopic member, the rotation axis of the clamping member is colinear with the driving shaft, and the telescopic member can drive the clamping member to clamp with the clamping part; The driving device is arranged on the telescopic end of the telescopic member and can drive the clamping member to rotate.

2. A fixture spacing adjustment mechanism according to claim 1, characterized in that: The clamp spacing adjustment mechanism also includes a front plate, which is vertically arranged on the telescopic end of the telescopic member. The clamping member is rotatably connected to the side of the front plate facing away from the telescopic member. The driving device is arranged on the front plate and is drivingly connected to the clamping member.

3. A fixture spacing adjustment mechanism according to claim 2, characterized in that: The driving device comprises a gear, a motor and a transmission belt; The gear is coaxially fixed on the clamping member, the motor is arranged on the front plate, the axis of the motor is parallel to the axis of the clamping member, and the output shaft of the motor is connected to the gear through a belt transmission.

4. A fixture spacing adjustment mechanism according to claim 3, characterized in that: There are two separation mechanisms, which are arranged side by side on the base, one end of the slider is slidably connected to one guide member, and the other end of the slider is slidably connected to the other guide member; There are two of each of the clamping parts and the gears. Both of the clamping parts and the gears are arranged on the front plate in a one-to-one correspondence with the clamping parts, and both of the gears are meshed with the transmission belt.

5. A fixture spacing adjustment mechanism according to claim 4, characterized in that: A clamping piece is located below the motor output shaft, and a tensioning wheel is rotatably connected between the clamping piece and the output shaft on the side of the front plate facing away from the telescopic piece, and the side wall of the tensioning wheel abuts against the outer side of the corresponding section of the transmission belt.

6. A fixture spacing adjustment mechanism according to claim 2, characterized in that: The clamp spacing adjustment mechanism also includes a rear plate and a connecting rod, wherein the connecting rod is vertically arranged on a side of the front plate facing the telescopic member, and the rear plate is located behind the telescopic member and is fixedly connected to the rear end of the connecting rod; A sliding sleeve is provided on the side wall of the telescopic member in the same direction, and the connecting rod is slidably sleeved on the inner side of the sliding sleeve.

7. A fixture spacing adjustment mechanism according to claim 6, characterized in that: One end of the clamping member close to the telescopic member is coaxially connected with a rotating shaft, and the rotating shaft passes through the front plate and is rotatably connected to the rear plate.

8. The fixture spacing adjustment mechanism according to claim 1, characterized in that: There is more than one drive groove group, and the plurality of drive groove groups are respectively arranged at both ends of the drive shaft. The directions of the thread grooves corresponding to the drive groove groups at both ends of the drive shaft are opposite, and the pitch increasing directions of the thread grooves corresponding to the drive groove groups at both ends of the drive shaft are opposite.

9. The fixture spacing adjustment mechanism according to claim 1, characterized in that: The guide member is a slide bar, which is horizontally arranged on the base, and the sliders are all slidably connected to the slide bar.

10. The fixture spacing adjustment mechanism according to claim 1, characterized in that: The clamp spacing adjustment mechanism also includes a positioning bead. One end of the driving shaft is provided with two positioning holes distributed along the circumferential direction. The positioning bead and the positioning hole are arranged on the base correspondingly.

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