A solder paste printing fixture suitable for PCBA products
By designing a solder paste printing fixture that supports the base and locking parts, the problem of inaccurate alignment in the solder paste brushing operation of PCBA products is solved, an efficient and accurate production process is achieved, and cost and skill requirements are reduced.
Patent Information
- Application Number
- CN202111318674.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-09
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2041-11-09
AI Technical Summary
PCBA products are not aligned accurately during solder paste operation, resulting in repeated alignment and sticking and fixing, loss of steel sheets and tape materials, increasing production costs and reducing efficiency.
A solder paste printing fixture including a support base and a locking member is designed. The support base is a hollow structure, and a first locking member and a second locking member are provided. The first locking member rotates to lock the PCBA product through a positioning pin and a block. The second locking member locks the brush solder paste steel sheet by rotating forward and reverse direction to ensure accurate alignment of the BGA area.
Improve production efficiency, improve product quality, reduce production costs, and reduce employee skill requirements.
Smart Images
Figure CN113873785B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of jigs, and in particular to a solder paste printing jig suitable for PCBA products. Background Art
[0002] Due to the packaging method of PCBA BGA parts and the minimum number of solder balls, which are both over 1,000, the precision of solder paste printing is very high during the Rework process. The original fixture has very high requirements on the skills of personnel, and it is easy to have inaccurate positioning, resulting in repeated positioning and pasting, steel sheet and tape material loss, high production cost and low efficiency. Summary of the invention
[0003] The main technical problem solved by the present invention is to provide a solder paste printing jig suitable for PCBA products, which solves the problem that the PCBA products are not accurately aligned during the solder paste brushing operation, resulting in repeated alignment and pasting, and loss of steel sheets and tape materials.
[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: a solder paste printing jig suitable for PCBA products, comprising: a support base, the support base is a hollow structure and is recessed downward to form a support groove for supporting the PCBA product, and the support base is provided with a first locking piece for locking the PCBA product at the four peripheries of the support groove, and a solder paste brushing steel sheet is provided corresponding to the position of the part on the PCBA product where solder paste needs to be printed, and the solder paste brushing steel sheet is locked with the PCBA product through a second locking piece, and the second locking piece includes two groups and is respectively arranged on both sides of the solder paste brushing steel sheet, one group of the second locking pieces adopts forward rotation to lock the PCBA product, and the other group of the second locking pieces adopts reverse rotation to lock the PCBA product.
[0005] In a preferred embodiment of the present invention, three groups of first locking members are provided on the three sides of the support base.
[0006] In a preferred embodiment of the present invention, the first locking member includes a first positioning pin disposed on the support base and a first pressing block sleeved on the first positioning pin, and the first pressing block can rotate around the first positioning pin to lock the PCBA product.
[0007] In a preferred embodiment of the present invention, the first positioning pin is threadedly connected to the support base.
[0008] In a preferred embodiment of the present invention, the second locking member includes a second positioning pin disposed on the solder paste brushing steel sheet and a second pressing block sleeved on the second positioning pin, and the second pressing block can rotate forward or reverse around the second positioning pin to lock or release the PCBA product.
[0009] In a preferred embodiment of the present invention, the second positioning pin is threadedly connected to the solder paste brushing steel sheet.
[0010] In a preferred embodiment of the present invention, the second locking members include two groups, wherein the second pressing blocks in one group of second locking members rotate forward to lock the PCBA product, and the second pressing blocks in the other group of second locking members rotate reversely to lock the PCBA product.
[0011] The beneficial effects of the present invention are as follows: the structure is simple, the support base and the first locking piece are used to support and lock the PCBA product, and the solder paste steel sheet is precisely aligned with the BGA area and then locked with the second locking piece to prevent the PCBA product from being offset, which can effectively improve production efficiency, improve quality, reduce production costs, and reduce employee skill requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:
[0013] Figure 1 It is a structural schematic diagram of a solder paste printing jig suitable for PCBA products of the present invention;
[0014] Figure 2 It is a structural schematic diagram of the PCBA product placed in the support base in the present invention;
[0015] Figure 3 It is a schematic diagram of brushing solder paste on a steel sheet in the present invention. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.
[0017] See also Figure 1-3The present invention discloses a solder paste printing jig suitable for PCBA products, comprising: a support base 1, the support base is a hollow structure and is concave downward to form a support groove 3 for supporting a PCBA product 2, the support base is provided with a first locking member 4 for locking the PCBA product at the four peripheries of the support groove, a solder paste brushing steel sheet 5 is provided corresponding to the position of the part on the PCBA product where solder paste needs to be printed, the solder paste brushing steel sheet is locked with the PCBA product through a second locking member 6, the second locking member includes two groups and is respectively arranged on both sides of the solder paste brushing steel sheet, one group of the second locking members adopts forward rotation to lock the PCBA product, and the other group of the second locking members adopts reverse rotation to lock the PCBA product, so as to prevent the PCBA product from being offset when locked in the same direction.
[0018] Specifically, three groups of first locking members are provided on the three sides of the support base, wherein the first locking member includes a first positioning pin 41 provided on the support base and a first pressure block 42 sleeved on the first positioning pin, the first positioning pin is threadedly connected to the support base, the first pressure block can be rotated around the first positioning pin to above the edge of the PCBA product to lock the PCBA product, and after locking, it can be tightened by rotating the first positioning pin.
[0019] Specifically, the second locking member includes a second positioning pin 61 arranged on the solder paste steel sheet and a second pressure block 62 sleeved on the second positioning pin. The second positioning pin is threadedly connected to the solder paste steel sheet. The second pressure block can rotate forward or reverse around the second positioning pin to lock or release the PCBA product. The structure and working principle of the second positioning pin are the same as those of the first positioning pin, which will not be elaborated here.
[0020] The second locking members can be provided in two groups, wherein the second pressing blocks in one group of the second locking members rotate forward to lock the PCBA product, and the second pressing blocks in the other group of the second locking members rotate reversely to lock the PCBA product. The rotation directions of the two groups of the second pressing blocks are opposite, which can avoid the PCBA product from being offset when being locked in the same direction.
[0021] The workflow is as follows:
[0022] Step 1: Place the support base on the operating platform;
[0023] Step 2: Place the PCBA product on the support base and lock it with the first locking piece;
[0024] Step 3: Place the solder paste steel sheet on the part where the solder paste needs to be printed on the PCBA product;
[0025] Step 4: Use the second locking piece to lock the solder paste steel sheet and the PCBA product, using the forward and reverse double locking method to prevent the offset caused by locking in the same direction.
[0026] Step 5: Fix the protective cover on the PCBA product to prevent secondary defects in the product during the operation;
[0027] Step 6: Print solder paste at locations where solder paste is required.
[0028] The beneficial effects of the solder paste printing jig suitable for PCBA products of the present invention are: simple structure, the support base and the first locking piece are used to support and lock the PCBA products, and the solder paste steel sheet is accurately aligned with the BGA area and then locked with the second locking piece to prevent the PCBA products from being offset, which can effectively improve production efficiency, improve quality, reduce production costs, and reduce employee skill requirements.
[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A solder paste printing jig suitable for PCBA products, characterized in that: include: A support base, wherein the support base is a hollow structure and is recessed downward to form a support groove for supporting PCBA products. A first locking piece for locking the PCBA product is arranged on the four peripheries of the support groove on the support base. A solder paste brushing steel sheet is arranged corresponding to the position of the part on the PCBA product where solder paste needs to be printed. The solder paste brushing steel sheet is locked with the PCBA product through a second locking piece. The second locking piece includes two groups and is respectively arranged on both sides of the solder paste brushing steel sheet. One group of second locking pieces adopts forward rotation to lock the PCBA product, and the other group of second locking pieces adopts reverse rotation to lock the PCBA product. Three groups of first locking pieces are arranged on the three sides of the support base. The first locking piece includes a first locating pin arranged on the support base and a first pressing block sleeved on the first locating pin. The first pressing block can rotate around the first locating pin to lock the PCBA product. The second locking piece includes a second locating pin arranged on the solder paste brushing steel sheet and a second pressing block sleeved on the second locating pin. The second pressing block can rotate forward or reverse around the second locating pin to lock or release the PCBA product.
2. The solder paste printing jig suitable for PCBA products according to claim 1, characterized in that: The first positioning pin is threadedly connected to the support base.
3. The solder paste printing jig suitable for PCBA products according to claim 1, characterized in that: The second positioning pin is threadedly connected to the solder paste brushed steel sheet.
4. The solder paste printing jig suitable for PCBA products according to claim 1, characterized in that: The second locking members include two groups, wherein the second pressing blocks in one group of second locking members rotate forward to lock the PCBA product, and the second pressing blocks in the other group of second locking members rotate reversely to lock the PCBA product.