Positioning and clamping device for ceramic substrate printing

Abstract

The utility model discloses a positioning and clamping device for ceramic substrate printing, which belongs to the technical field of ceramic substrate processing and comprises a workbench, a placing groove for placing a ceramic substrate is arranged on the upper surface of the workbench, and two groups of symmetrically arranged clamping components are mounted on the workbench. Each clamping assembly comprises a sleeve, a spring, a sliding rod and a first clamping block, two symmetrically-arranged sliding grooves are formed in the upper surface of the workbench, the inner wall of each sliding groove is slidably connected with a second clamping block, and a driving assembly used for driving the two second clamping blocks to move close to each other is installed on the workbench. By means of the mode, the ceramic substrate is placed in the containing groove, the sliding rods on the two sides enable the two first clamping blocks to abut against the ceramic substrate under the elastic force effect of the springs, then the two second clamping blocks are driven by the driving assembly to move close to each other, the two second clamping blocks abut against the ceramic substrate from the two sides, and therefore the ceramic substrate is positioned and clamped; and the ceramic substrate can be conveniently and quickly fixed and disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic substrate processing, and particularly relates to a positioning and clamping device for ceramic substrate printing. Background Art

[0002] A ceramic substrate refers to a special process board in which a copper foil is directly bonded to the surface of an alumina or aluminum nitride ceramic substrate at high temperature. Generally, screen printing process is used for ceramic substrate printing. To ensure the quality of the process in screen printing, the key lies in the processing and positioning of the ceramic substrate. For the printing of large-area multi-connected (strip) substrates, the key is to solve the positioning of the ceramic substrate first. During the printing process of the ceramic substrate, a positioning fixture is needed for fixation.

[0003] In the Chinese utility model patent with the publication number of CN216507347U, a central positioning fixture for ceramic substrate printing is disclosed, which includes a base. The interior of the base is a hollow structure. An opening is formed at the top of the base. A workbench is fixedly connected to the inner wall of the bottom of the base. First clamping mechanisms are arranged on the inner walls of both sides of the base, and second clamping mechanisms are arranged on the inner walls of the front and back of the base. The first clamping mechanism includes two clamping components installed on one inner wall of the base, and the two clamping components are arranged in sequence from front to back.

[0004] In view of the above related technologies, the inventor believes that the following defects exist: When the above clamping device fixes or disassembles the ceramic substrate, due to the elastic force of the first spring and the second spring, the staff needs to hold the first clamping post and the second clamping post by hand respectively before installing or disassembling the ceramic substrate. This is not only very inconvenient to operate and cannot be operated with one hand, but also easily damages the ceramic substrate if the operation is improper.

[0005] Based on this, the utility model designs a positioning and clamping device for ceramic substrate printing to solve the above problems. Summary of the Utility Model

[0006] Aiming at the above-mentioned defects of the prior art, the utility model provides a positioning and clamping device for ceramic substrate printing.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] A positioning and clamping device for printing ceramic substrates, comprising a workbench, a placement groove for placing ceramic substrates is provided on the upper surface of the workbench, two groups of symmetrically arranged clamping components are installed on the workbench, each group of clamping components comprises a sleeve fixed to the upper surface of the workbench, a spring fixed to the inner wall of the sleeve, a slide rod fixed to the end of the spring and slidably connected to the inner wall of the sleeve, and a first clamping block fixed to an end of the slide rod away from the spring, two symmetrically arranged slide grooves are provided on the upper surface of the workbench, a second clamping block is slidably connected to the inner wall of each slide groove, and a driving component for driving the two second clamping blocks to move closer to each other is installed on the workbench;

[0009] Furthermore, the driving assembly includes a double-headed screw rod that is penetrated and rotatably connected to the side wall of the workbench, and a rotating block fixed to one end of the double-headed screw rod away from the workbench, one end of the double-headed screw rod is rotatably connected to the inner wall of the slide groove, the double-headed screw rod is provided with two sections of threads with opposite rotation directions and equal pitches, the double-headed screw rod penetrates two second clamping blocks and is threadedly connected, and the two second clamping blocks are respectively arranged on the two sections of the threads of the double-headed screw rod;

[0010] Furthermore, a limiting assembly for limiting the rotation of the double-ended screw is installed on the double-ended screw, and the limiting assembly includes a limiting nut sleeved on the double-ended screw and threadedly connected to the double-ended screw;

[0011] Furthermore, the double-ended screw rod is sleeved with an annular rubber sheet located between the limit nut and the workbench;

[0012] Furthermore, the side walls of the two first clamping blocks close to each other are both provided with a yielding portion;

[0013] Furthermore, a limiting groove is provided on the inner wall of the sleeve, and a limiting block is fixed on the side wall of the slide rod and is slidably connected to the limiting groove;

[0014] Furthermore, the first clamping block side wall and the second clamping block side wall are both fixed with rubber pads;

[0015] Furthermore, a flaring groove is provided at the intersection between the upper surface of the workbench and the inner wall of the accommodating groove.

[0016] Beneficial Effects

[0017] 1. When it is necessary to fix the ceramic substrate, the staff places the ceramic substrate in the placement groove, and the sliding rods on both sides make the two first clamping blocks press against the ceramic substrate under the elastic force of the spring, and then drive the two second clamping blocks to move closer to each other through the driving component, so that the two second clamping blocks press against the ceramic substrate from both sides, thereby positioning and clamping the ceramic substrate. When it is necessary to remove the ceramic substrate, the two second clamping blocks are driven by the driving component to move and move away from the ceramic substrate, and then the first clamping block is pushed to take the ceramic substrate upward, eliminating the tedious operation of pulling the first clamping column and the second clamping column by hand, facilitating the rapid fixation and removal of the ceramic substrate, and reducing the probability of damaging the ceramic substrate due to improper operation during fixation or removal.

[0018] 2. When it is necessary to drive the second clamping block to move, the staff rotates the double-headed screw by turning the block. Since the two second clamping blocks are threadedly connected to the two sections of threads on the double-headed screw, the two second clamping blocks are slidingly connected to the inner walls of the two slide grooves, so that the two second clamping blocks move closer to each other and press against the ceramic substrate, thereby enhancing the stability of the ceramic substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a three-dimensional diagram of the main structure of a positioning and clamping device for printing ceramic substrates according to the utility model;

[0021] Figure 2 This is a schematic cross-sectional structure diagram of a positioning and clamping device for printing a ceramic substrate according to the utility model;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the clamping assembly in the utility model.

[0024] The numbers in the figure represent:

[0025] 1. Workbench 11. Placement slot 12. Slide slot 13. Expanding slot 2. Clamping assembly 21. Sleeve 211. Limiting slot

[0026] 22. Spring 23. Slide bar 24. First clamping block 241. Displacement portion 3. Second clamping block 4. Driving assembly 41.

[0027] Double-headed lead screw 42, rotating block 5, limiting component 51, limiting nut 52, annular rubber sheet 6, limiting block 7.

[0028] Rubber pad. Specific implementation mode

[0029] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] The present utility model will be further described below with reference to the embodiments.

[0031] In some embodiments, please refer to the attached instruction manual Figures 1-4 , a positioning and clamping device for ceramic substrate printing, comprising a workbench 1, a clamping component 2, a second clamping block 3 and a driving component 4.

[0032] The workbench 1 has a cuboid structure. A placement groove 11 for placing a ceramic substrate is formed on the upper surface of the workbench 1, and two symmetrically arranged sliding grooves 12 are formed on the upper surface of the workbench 1. The clamping component 2 is installed on the workbench 1. There are two groups of clamping components 2 which are symmetrically arranged on the workbench 1. Each group of clamping components 2 includes a sleeve 21, a spring 22, a sliding rod 23 and a first clamping block 24. The sleeve 21 has a cuboid structure. One side of the sleeve 21 close to the placement groove 11 is open, and the sleeve 21 is fixed on the upper surface of the workbench 1. The spring 22 is arranged in the sleeve 21, and one end of the spring 22 is fixed to the inner wall of the sleeve 21. The sliding rod 23 has a rectangular rod structure, and the sliding rod 23 is slidably connected to the inner wall of the sleeve 21. One end of the sliding rod 23 is fixed to the end of the spring 22. The first clamping block 24 is fixed to the end of the sliding rod 23 away from the spring 22, and the bottom of the first clamping block 24 is slidably connected to the upper surface of the workbench 1.

[0033] The second clamping block 3 is of a cuboid structure, and there are two second clamping blocks 3. The two second clamping blocks 3 are respectively slidably connected to the inner walls of the two sliding grooves 12. The driving assembly 4 is installed on the workbench 1 and is used to drive the two second clamping blocks 3 to move closer to each other. The driving assembly 4 includes a double-headed screw rod 41 and a rotating block 42. The double-headed screw rod 41 is a rod-shaped structure arranged horizontally. The double-headed screw rod 41 penetrates through the side wall of the workbench 1 and is rotatably connected. One end of the double-headed screw rod 41 is rotatably connected to the inner wall of the sliding groove 12. Two sections of threads with opposite helix directions and equal pitches are arranged on the double-headed screw rod 41. The double-headed screw rod 41 penetrates through the two second clamping blocks 3 and is threadedly connected. The two second clamping blocks 3 are respectively arranged on the two sections of threads of the double-headed screw rod 41. The rotating block 42 is of a circular block structure. The rotating block 42 is fixed at one end of the double-headed screw rod 41 away from the workbench 1, and the axis of the rotating block 42 coincides with the axis of the double-headed screw rod 41.

[0034] In the embodiment of the present utility model, when it is necessary to fix the ceramic substrate, the staff places the ceramic substrate in the placement groove 11. The sliding rods 23 on both sides make the two first clamping blocks 24 abut against the ceramic substrate under the elastic force of the springs 22. Then, the double-headed screw rod 41 is rotated through the rotating block 42. Since the two second clamping blocks 3 are threadedly connected to the two sections of threads on the double-headed screw rod 41 and the two second clamping blocks 3 are slidably connected to the inner walls of the two sliding grooves 12, the two second clamping blocks 3 are driven to move closer to each other, so that the two second clamping blocks 3 abut against the ceramic substrate from both sides, thereby positioning and clamping the ceramic substrate. When it is necessary to disassemble the ceramic substrate, the double-headed screw rod 41 is reversely rotated through the rotating block 42 to drive the two second clamping blocks 3 to move away from the ceramic substrate, and then the first clamping block 24 is pushed, so as to take out the ceramic substrate upward, eliminating the cumbersome operation of pulling the first clamping post and the second clamping post by hand, facilitating the quick fixing and disassembly of the ceramic substrate, and reducing the probability of damaging the ceramic substrate due to improper operation during fixing or disassembly.

[0035] In some embodiments, as a preferred embodiment of the present utility model, a limiting assembly 5 is installed on the double-headed screw rod 41 for limiting the rotation of the double-headed screw rod 41. The limiting assembly 5 includes a limiting nut 51 and an annular rubber sheet 52. The limiting nut 51 is sleeved on the double-headed screw rod 41 and is threadedly connected to the double-headed screw rod 41, and the axis of the limiting nut 51 coincides with the axis of the double-headed screw rod 41. The annular rubber sheet 52 is sleeved on the double-headed screw rod 41, and the annular rubber sheet 52 is arranged between the limiting nut 51 and the workbench 1.

[0036] In the embodiment of the utility model, after the second clamping block 3 is pressed against the ceramic substrate through the driving component 4, the staff needs to tighten the limiting nut 51 so that the side wall of the limiting nut 51 cooperates with the side wall of the workbench 1 and presses against the annular rubber sheet 52, thereby limiting the rotation of the double-headed screw 41, reducing the probability of displacement of the second clamping block 3 due to the rotation of the double-headed screw 41. The annular rubber sheet 52 is made of rubber material, and its material surface has a large friction coefficient, which increases the friction between the limiting nut 51 and the workbench 1, and enhances the limiting effect on the double-headed screw 41.

[0037] In some embodiments, as a preferred embodiment of the present invention, the side walls of the two first clamping blocks 24 close to each other are provided with a clearance portion 241. In the embodiment of the present invention, when the ceramic substrate is placed in the placement groove 11, the ceramic substrate cooperates with the clearance portion 241 to squeeze the first clamping block 24 into the sleeve 21, eliminating the tedious operation of the staff manually pushing the first clamping block 24, and facilitating the rapid clamping of the ceramic substrate by the clamping assembly 2.

[0038] In some embodiments, as a preferred embodiment of the present invention, a limiting groove 211 is provided on the inner wall of the sleeve 21, and a limiting block 6 is fixed to the side wall of the slide bar 23 and is slidably connected to the limiting groove 211. In the embodiment of the present invention, the limiting block 6 is slidably connected in the limiting groove 211, which limits the position of the slide bar 23, avoids the slide bar 23 from being separated from the sleeve 21, and is conducive to the normal use of the clamping assembly 2.

[0039] In some embodiments, as a preferred embodiment of the present invention, the side walls of the first clamping block 24 and the side walls of the second clamping block 3 are both fixed with rubber pads 7. In the embodiment of the present invention, the rubber pads 7 are made of rubber material, and the surface thereof has a large friction coefficient, which increases the friction between the side walls of the first clamping block 24 and the side walls of the second clamping block 3, and enhances the fixing effect on the ceramic substrate.

[0040] In some embodiments, as a preferred embodiment of the present invention, a flaring groove 13 is provided at the intersection between the upper surface of the workbench 1 and the inner wall of the receiving groove. In the embodiment of the present invention, the flaring groove 13 is provided so that the staff can reach into the flaring groove 13 and lift the ceramic substrate from the bottom, which is convenient for the quick disassembly of the ceramic substrate.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning and clamping device for ceramic substrate printing, comprising a workbench (1), characterized in that: A placement groove (11) for placing a ceramic substrate is formed on the upper surface of the workbench (1). Two sets of symmetrically arranged clamping assemblies (2) are installed on the workbench (1). Each clamping assembly (2) includes a sleeve (21) fixed to the upper surface of the workbench (1), a spring (22) fixed to the inner wall of the sleeve (21), a sliding rod (23) fixed to the end of the spring (22) and slidably connected to the inner wall of the sleeve (21), and a first clamping block (24) fixed to the end of the sliding rod (23) away from the spring (22). Two symmetrically arranged sliding grooves (12) are formed on the upper surface of the workbench (1). A second clamping block (3) is slidably connected to the inner wall of each sliding groove (12). A driving assembly (4) for driving the two second clamping blocks (3) to move closer to each other is installed on the workbench (1).

2. The positioning and clamping device for ceramic substrate printing according to claim 1, wherein, The driving assembly (4) includes a double-headed screw rod (41) penetrating through and rotatably connected to the side wall of the workbench (1), and a rotating block (42) fixed to the end of the double-headed screw rod (41) away from the workbench (1). One end of the double-headed screw rod (41) is rotatably connected to the inner wall of the sliding groove (12). Two threads with opposite helix directions and equal pitches are provided on the double-headed screw rod (41). The double-headed screw rod (41) penetrates through the two second clamping blocks (3) and is threadedly connected. The two second clamping blocks (3) are respectively arranged on the two threads of the double-headed screw rod (41).

3. The positioning and clamping device for ceramic substrate printing according to claim 2, characterized in that, A limiting assembly (5) for restricting the rotation of the double-headed screw rod (41) is installed on the double-headed screw rod (41). The limiting assembly (5) includes a limiting nut (51) sleeved on the double-headed screw rod (41) and threadedly connected to the double-headed screw rod (41).

4. The positioning and clamping device for ceramic substrate printing according to claim 3, wherein, An annular rubber sheet (52) is sleeved on the double-headed screw rod (41) between the limiting nut (51) and the workbench (1).

5. The positioning and clamping device for ceramic substrate printing according to claim 1, characterized in that, Relieving portions (241) are formed on the side walls of the two first clamping blocks (24) close to each other.

6. The positioning and clamping device for ceramic substrate printing according to claim 5, wherein, A limiting groove (211) is formed on the inner wall of the sleeve (21). A limiting block (6) slidably connected to the limiting groove (211) is fixed to the side wall of the sliding rod (23).

7. The positioning and clamping device for ceramic substrate printing according to claim 6, wherein, Rubber pads (7) are fixed to the side walls of the first clamping block (24) and the second clamping block (3).

8. The positioning and clamping device for ceramic substrate printing according to claim 7, wherein, An flared groove (13) is formed at the intersection between the upper surface of the workbench (1) and the inner wall of the receiving groove.

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